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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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] = 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 int ans = 0; ans 0 for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		} {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		} int value = v[i]; value v[i] v i int cost = c[i]; cost c[i] c i if (value > cost) {
				ans += value - cost;
			} value > cost value cost {
				ans += value - cost;
			} ans += value - cost ans value - cost value cost System.out.println(ans) System.out.println System.out System System.out ans 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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		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 ans = 0;

		for (int i = 0; i < n; i++) {
			int value = v[i];
			int cost = c[i];

			if (value > cost) {
				ans += value - cost;
			}
		}
		System.out.println(ans);
		sc.close();
	}

}
