import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    }
} Main public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    } main {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int N = sc.nextInt(); N sc.nextInt() sc.nextInt sc int[] V = new int[N]; V new int[N] N int[] 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] = 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] = sc.nextInt() C[i] C i sc.nextInt() sc.nextInt sc int total = 0; total 0 for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        } {
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        } if( V[i] - C[i] > 0) total += (V[i] - C[i]); V[i] - C[i] > 0 V[i] - C[i] V[i] V i C[i] C i 0 total += (V[i] - C[i]) total (V[i] - C[i]) V[i] V i C[i] C i System.out.println(total) System.out.println System.out System System.out total String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner sc = new Scanner(System.in);
        
        int N = sc.nextInt();
        
        int[] V = new int[N];
        int[] 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 total = 0;
        for(int i = 0; i < N; i++){
            if( V[i] - C[i] > 0) total += (V[i] - C[i]);
        }
        
        System.out.println(total);
    }
}
