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

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		System.out.println(ans);
	}
} 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];
		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		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];
		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();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		System.out.println(ans);
	} 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();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		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 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 sc.close() sc.close sc int ans = 0; ans 0 for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		} {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		} int diff = V[i] - C[i]; diff V[i] - C[i] V[i] V i C[i] C i if (diff > 0) {
				ans += diff;
			} diff > 0 diff 0 {
				ans += diff;
			} ans += diff ans diff 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];
		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();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		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];
		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();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		System.out.println(ans);
	}
} 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];
		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		sc.close();

		int ans = 0;
		for (int i = 0; i < N; i++) {
			int diff = V[i] - C[i];
			if (diff > 0) {
				ans += diff;
			}
		}
		System.out.println(ans);
	}
}
