import java.util.*;
import java.io.*;

public class Main {
    public static final long MOD = 1000000007;

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    }

    private static void print(Object o) {
        System.out.println(o.toString());
    }
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
} import java.util.*; util.* java import java.io.*; io.* java public class Main {
    public static final long MOD = 1000000007;

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    }

    private static void print(Object o) {
        System.out.println(o.toString());
    }
} Main public static final long MOD = 1000000007; MOD 1000000007 public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    } main {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    } FastScanner sc = new FastScanner(); sc new FastScanner() PrintWriter out = new PrintWriter(System.out); out new PrintWriter(System.out) Integer a=0 a 0 b=0 b 0 c=0 c 0 i i j j k k n=0 n 0 m=0 m 0 ans=0; ans 0 List<Integer> l = new ArrayList<>(); l new ArrayList<>() a=sc.nextInt() a sc.nextInt() sc.nextInt sc for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        } i=0; i=0 i 0 i<a i a i++ i++ i {
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        } {
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        } b=sc.nextInt() b sc.nextInt() sc.nextInt sc l.add(b) l.add l b if(i==a-1){
                m=b;
            }else{
                ans+=b;
            } i==a-1 i a-1 a 1 {
                m=b;
            } m=b m b {
                ans+=b;
            } ans+=b ans b for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        } i=a-1; i=a-1 i a-1 a 1 i>0 i 0 i-- i-- i {
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        } {
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        } if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            } i==a-1 i a-1 a 1 {
                n=Math.abs(m-ans);
            } n=Math.abs(m-ans) n Math.abs(m-ans) Math.abs Math m-ans m ans {
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            } m+=l.get(i) m l.get(i) l.get l i ans-=l.get(i) ans l.get(i) l.get l i n=Math.min(n,Math.abs(m-ans)) n Math.min(n,Math.abs(m-ans)) Math.min Math n Math.abs(m-ans) Math.abs Math m-ans m ans print(n) print n out.flush() out.flush out String[] args args private static void print(Object o) {
        System.out.println(o.toString());
    } print {
        System.out.println(o.toString());
    } System.out.println(o.toString()) System.out.println System.out System System.out o.toString() o.toString o Object o o class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
} FastScanner private final InputStream in = System.in; in System.in System System.in private final byte[] buffer = new byte[1024]; buffer new byte[1024] 1024 private int ptr = 0; ptr 0 private int buflen = 0; buflen 0 private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    } hasNextByte {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    } if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        } ptr < buflen ptr buflen {
            return true;
        } return true; true {
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        } ptr = 0 ptr 0 try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } IOException e {
                e.printStackTrace();
            } e.printStackTrace() e.printStackTrace e {
                buflen = in.read(buffer);
            } buflen = in.read(buffer) buflen in.read(buffer) in.read in buffer if (buflen <= 0) {
                return false;
            } buflen <= 0 buflen 0 {
                return false;
            } return false; false return true; true private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;} readByte { if (hasNextByte()) return buffer[ptr++]; else return -1;} if (hasNextByte()) return buffer[ptr++]; else return -1; hasNextByte() hasNextByte return buffer[ptr++]; buffer[ptr++] buffer ptr++ ptr return -1; -1 1 private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;} isPrintableChar { return 33 <= c && c <= 126;} return 33 <= c && c <= 126; 33 <= c && c <= 126 33 <= c 33 c c <= 126 c 126 int c c public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} hasNext { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();} while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; hasNextByte() && !isPrintableChar(buffer[ptr]) hasNextByte() hasNextByte !isPrintableChar(buffer[ptr]) isPrintableChar(buffer[ptr]) isPrintableChar buffer[ptr] buffer ptr ptr++ ptr return hasNextByte(); hasNextByte() hasNextByte public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    } next {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    } if (!hasNext()) throw new NoSuchElementException(); !hasNext() hasNext() hasNext throw new NoSuchElementException(); new NoSuchElementException() StringBuilder sb = new StringBuilder(); sb new StringBuilder() int b = readByte(); b readByte() readByte while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        } isPrintableChar(b) isPrintableChar b {
            sb.appendCodePoint(b);
            b = readByte();
        } sb.appendCodePoint(b) sb.appendCodePoint sb b b = readByte() b readByte() readByte return sb.toString(); sb.toString() sb.toString sb public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    } nextLong {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    } if (!hasNext()) throw new NoSuchElementException(); !hasNext() hasNext() hasNext throw new NoSuchElementException(); new NoSuchElementException() long n = 0; n 0 boolean minus = false; minus false int b = readByte(); b readByte() readByte if (b == '-') {
            minus = true;
            b = readByte();
        } b == '-' b '-' {
            minus = true;
            b = readByte();
        } minus = true minus true b = readByte() b readByte() readByte if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        } b < '0' || '9' < b b < '0' b '0' '9' < b '9' b {
            throw new NumberFormatException();
        } throw new NumberFormatException(); new NumberFormatException() while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        } true {
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        } if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            } '0' <= b && b <= '9' '0' <= b '0' b b <= '9' b '9' {
                n *= 10;
                n += b - '0';
            } n *= 10 n 10 n += b - '0' n b - '0' b '0' if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            } b == -1 || !isPrintableChar(b) b == -1 b -1 1 !isPrintableChar(b) isPrintableChar(b) isPrintableChar b {
                return minus ? -n : n;
            } return minus ? -n : n; minus ? -n : n minus -n n n {
                throw new NumberFormatException();
            } throw new NumberFormatException(); new NumberFormatException() b = readByte() b readByte() readByte public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    } nextInt {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    } long nl = nextLong(); nl nextLong() nextLong if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException(); nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE nl < Integer.MIN_VALUE nl Integer.MIN_VALUE Integer Integer.MIN_VALUE nl > Integer.MAX_VALUE nl Integer.MAX_VALUE Integer Integer.MAX_VALUE throw new NumberFormatException(); new NumberFormatException() return (int) nl; (int) nl public double nextDouble() { return Double.parseDouble(next());} nextDouble { return Double.parseDouble(next());} return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next public class Main {
    public static final long MOD = 1000000007;

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    }

    private static void print(Object o) {
        System.out.println(o.toString());
    }
} public class Main {
    public static final long MOD = 1000000007;

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    }

    private static void print(Object o) {
        System.out.println(o.toString());
    }
} Main
import java.util.*;
import java.io.*;

public class Main {
    public static final long MOD = 1000000007;

    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        PrintWriter out = new PrintWriter(System.out);
        Integer a=0,b=0,c=0,i,j,k,n=0,m=0,ans=0;
        List<Integer> l = new ArrayList<>();

        a=sc.nextInt();
        
        for(i=0; i<a; i++){
            b=sc.nextInt();
            l.add(b);
            if(i==a-1){
                m=b;
            }else{
                ans+=b;
            }
        }

        for(i=a-1;i>0;i--){
            if(i==a-1){
                n=Math.abs(m-ans);
            }else{
                m+=l.get(i);
                ans-=l.get(i);
                n=Math.min(n,Math.abs(m-ans));
            }
        }

        print(n);
        
        out.flush();
    }

    private static void print(Object o) {
        System.out.println(o.toString());
    }
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
}
