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

import static java.lang.System.in;

public class Main {
    static long[][] selfCon, selfUncon;
    static long mod = 1000000000+7;
    static int n;
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    }
} import java.util.*; util.* java import java.io.*; io.* java import static java.lang.System.in; import static java.lang.System.in; import static java.lang.System.in; public class Main {
    static long[][] selfCon, selfUncon;
    static long mod = 1000000000+7;
    static int n;
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    }
} Main static long[][] selfCon selfCon selfUncon; selfUncon static long mod = 1000000000+7; mod 1000000000+7 1000000000 7 static int n; n public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int[][] vc = new int[n][2]; vc new int[n][2] n 2 int[] v=new int[n] v new int[n] n c = new int[n]; c new int[n] n for(int i=0;i<n;i++) v[i]=sc.nextInt(); int i=0; int i=0; i 0 i<n i n i++ i++ i v[i]=sc.nextInt(); v[i]=sc.nextInt() v[i] v i sc.nextInt() sc.nextInt sc for(int i=0;i<n;i++) c[i]=sc.nextInt(); int i=0; int i=0; i 0 i<n i n i++ i++ i c[i]=sc.nextInt(); c[i]=sc.nextInt() c[i] c i sc.nextInt() sc.nextInt sc int ans =  0; ans 0 for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]); int i=0; int i=0; i 0 i<n i n i++ i++ i ans += Math.max(0,v[i]-c[i]); ans += Math.max(0,v[i]-c[i]) ans Math.max(0,v[i]-c[i]) Math.max Math 0 v[i]-c[i] v[i] v i c[i] c i System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
    static long[][] selfCon, selfUncon;
    static long mod = 1000000000+7;
    static int n;
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    }
} public class Main {
    static long[][] selfCon, selfUncon;
    static long mod = 1000000000+7;
    static int n;
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    }
} Main
import java.util.*;
import java.io.*;

import static java.lang.System.in;

public class Main {
    static long[][] selfCon, selfUncon;
    static long mod = 1000000000+7;
    static int n;
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] vc = new int[n][2];
        int[] v=new int[n], c = new int[n];
        for(int i=0;i<n;i++) v[i]=sc.nextInt();
        for(int i=0;i<n;i++) c[i]=sc.nextInt();
        int ans =  0;
        for(int i=0;i<n;i++) ans += Math.max(0,v[i]-c[i]);
        System.out.println(ans);
    }
}
