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