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];
		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 sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	}
} 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];
		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 sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	}
} 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();

		int sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	} 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 sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	} 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] 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] c i sc.nextInt() sc.nextInt sc int sum = 0; sum 0 for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		} {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		} if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]); v[i] - c[i] > 0 v[i] - c[i] v[i] v i c[i] c i 0 sum += (v[i] - c[i]) sum (v[i] - c[i]) v[i] v i c[i] c i System.out.println(sum) System.out.println System.out System System.out sum sc.close() sc.close sc 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();

		int sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	}
} 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();

		int sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	}
} 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];
		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 sum = 0;

		for (int i = 0; i < N; i++) {
			if (v[i] - c[i] > 0)
				sum += (v[i] - c[i]);
		}

		System.out.println(sum);
		sc.close();
	}
}
