import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    }
} import java.util.Scanner; Scanner java.util public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    } main {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[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[] V = new int[N]; V 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 int[] C = new int[N]; C new int[N] N 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[] sub = new int[N]; sub new int[N] N int ans = 0; ans 0 for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
            sub[i] = V[i] - C[i];
        } {
            sub[i] = V[i] - C[i];
        } sub[i] = V[i] - C[i] sub[i] sub i V[i] - C[i] V[i] V i C[i] C i for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        } {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        } if (sub[i] > 0) {
                ans += sub[i];
            } sub[i] > 0 sub[i] sub i 0 {
                ans += sub[i];
            } ans += sub[i] ans sub[i] sub i System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    }
} public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    }
} Main
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int[] V = new int[N];
        for (int i = 0; i < N; i++) {
            V[i] = sc.nextInt();
        }

        int[] C = new int[N];
        for (int i = 0; i < N; i++) {
            C[i] = sc.nextInt();
        }

        int[] sub = new int[N];
        int ans = 0;


        for (int i = 0; i < N; i++) {
            sub[i] = V[i] - C[i];
        }

        for (int i = 0; i < N; i++) {
            if (sub[i] > 0) {
                ans += sub[i];
            }
        }

        System.out.println(ans);

    }
}
