import java.util.*;

/**
 * Main
 */
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	}
}; import java.util.*; util.* java public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	} main {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		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 int mouke[] = new int[N]; mouke new int[N] N int ans = 0; ans 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();
		} 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 for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			ans += Math.max(V[i] - C[i], 0);
		} {
			ans += Math.max(V[i] - C[i], 0);
		} ans += Math.max(V[i] - C[i], 0) ans Math.max(V[i] - C[i], 0) Math.max Math V[i] - C[i] V[i] V i C[i] C i 0 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);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	}
} Main
import java.util.*;

/**
 * Main
 */
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int N = sc.nextInt();
		int V[] = new int[N];
		int C[] = new int[N];
		int mouke[] = new int[N];
		int ans = 0;

		for (int i = 0; i < N; i++) {
			V[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		for (int i = 0; i < N; i++) {
			ans += Math.max(V[i] - C[i], 0);
		}

		System.out.println(ans);

		sc.close();
	}
};