import java.io.*;
import java.util.Scanner;


public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
} import java.io.*; io.* java import java.util.Scanner; Scanner java.util public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
} Main private static Scanner sc; sc private static Printer pr; pr private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	} solve {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	} 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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		} {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		} if (v[i] > c[i]) {
				ans += v[i] - c[i];
			} v[i] > c[i] v[i] v i c[i] c i {
				ans += v[i] - c[i];
			} ans += v[i] - c[i] ans v[i] - c[i] v[i] v i c[i] c i pr.println(ans) pr.println pr ans // ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	} main {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	} sc = new Scanner(System.in) sc new Scanner(System.in) pr = new Printer(System.out) pr new Printer(System.out) solve() solve pr.close() pr.close pr sc.close() sc.close sc String[] args args static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	} Printer Printer(OutputStream out) {
			super(out);
		} Printer {
			super(out);
		} super(out) super out OutputStream out out PrintWriter public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
} public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
} Main
import java.io.*;
import java.util.Scanner;


public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		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++) {
			if (v[i] > c[i]) {
				ans += v[i] - c[i];
			}
		}

		pr.println(ans);
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
}
