import java.util.*;


class Main{
    public static void main(String argv[]) {
        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 result = 0;
        for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        }
        System.out.println(result);
    }
} import java.util.*; util.* java class Main{
    public static void main(String argv[]) {
        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 result = 0;
        for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        }
        System.out.println(result);
    }
} Main public static void main(String argv[]) {
        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 result = 0;
        for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        }
        System.out.println(result);
    } 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 result = 0;
        for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        }
        System.out.println(result);
    } 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 result = 0; result 0 for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        } int i=0; int i=0; i 0 i<N i N i++ i++ i {
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        } {
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        } if(V[i]>C[i]){
                result += (V[i]-C[i]);
            } V[i]>C[i] V[i] V i C[i] C i {
                result += (V[i]-C[i]);
            } result += (V[i]-C[i]) result (V[i]-C[i]) V[i] V i C[i] C i System.out.println(result) System.out.println System.out System System.out result String argv[] argv
import java.util.*;


class Main{
    public static void main(String argv[]) {
        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 result = 0;
        for(int i=0;i<N;i++){
            if(V[i]>C[i]){
                result += (V[i]-C[i]);
            }
        }
        System.out.println(result);
    }
}