import 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];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	}
} import java.util.*; util.* java public class Main {

	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int v[] = new int[n];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	}
} Main public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int v[] = new int[n];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int v[] = new int[n];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	} 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 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) {
			int c = sc.nextInt();
			v[i] -= c;
		} int i = 0; int i = 0; i 0 i < n i n ++i ++i i {
			int c = sc.nextInt();
			v[i] -= c;
		} {
			int c = sc.nextInt();
			v[i] -= c;
		} int c = sc.nextInt(); c sc.nextInt() sc.nextInt sc v[i] -= c v[i] v i c sc.close() sc.close sc Arrays.sort(v) Arrays.sort Arrays v int ans = 0; ans 0 for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		} int i = n - 1; int i = n - 1; i n - 1 n 1 i >= 0 i 0 --i --i i {
			if (v[i] > 0)
				ans += v[i];
		} {
			if (v[i] > 0)
				ans += v[i];
		} if (v[i] > 0)
				ans += v[i]; v[i] > 0 v[i] v i 0 ans += v[i] ans v[i] v i System.out.println(ans) System.out.println System.out System System.out ans 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];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	}
} public class Main {

	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int v[] = new int[n];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	}
} Main
import 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];
		for (int i = 0; i < n; ++i)
			v[i] = sc.nextInt();
		for (int i = 0; i < n; ++i) {
			int c = sc.nextInt();
			v[i] -= c;
		}
		sc.close();
		Arrays.sort(v);
		int ans = 0;
		for (int i = n - 1; i >= 0; --i) {
			if (v[i] > 0)
				ans += v[i];
		}
		System.out.println(ans);
	}
}
