import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		System.out.println(solve());
	}
	
	public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	}
} import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) {
		System.out.println(solve());
	}
	
	public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	}
} Main public static void main(String[] args) {
		System.out.println(solve());
	} main {
		System.out.println(solve());
	} System.out.println(solve()) System.out.println System.out System System.out solve() solve String[] args args public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	} solve {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	} 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 X = 0 X 0 Y = 0; Y 0 for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		} {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		} if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			} V[i] >= C[i] V[i] V i C[i] C i {
				X += V[i];
				Y += C[i];
			} X += V[i] X V[i] V i Y += C[i] Y C[i] C i return X - Y; X - Y X Y public class Main {

	public static void main(String[] args) {
		System.out.println(solve());
	}
	
	public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	}
} public class Main {

	public static void main(String[] args) {
		System.out.println(solve());
	}
	
	public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	}
} Main
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		System.out.println(solve());
	}
	
	public static int solve() {
		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 X = 0, Y = 0;
		for (int i = 0; i < N; i++) {
			if (V[i] >= C[i]) {
				X += V[i];
				Y += C[i];
			}
		}
		return X - Y;
	}
}