import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	}

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

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next 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 sum = 0; sum 0 for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		} {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		} int c = sc.nextInt(); c sc.nextInt() sc.nextInt sc if (c < v[i])
				sum += (v[i] - c); c < v[i] c v[i] v i sum += (v[i] - c) sum (v[i] - c) v[i] v i c System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	}

} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int[] v = new int[n];
		for (int i = 0; i < n; i++) {
			v[i] = sc.nextInt();
		}
		int sum = 0;
		for (int i = 0; i < n; i++) {
			int c = sc.nextInt();
			if (c < v[i])
				sum += (v[i] - c);
		}
		System.out.println(sum);
	}

}
