import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	} main {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) StringBuilder sb = new StringBuilder(); sb new StringBuilder() 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] > 0) {
				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] > 0) {
				ans += v[i] - c[i];
			}
		} {
			if (v[i] - c[i] > 0) {
				ans += v[i] - c[i];
			}
		} if (v[i] - c[i] > 0) {
				ans += v[i] - c[i];
			} v[i] - c[i] > 0 v[i] - c[i] v[i] v i c[i] c i 0 {
				ans += v[i] - c[i];
			} ans += v[i] - c[i] ans v[i] - c[i] v[i] v i c[i] c 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);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		StringBuilder sb = new StringBuilder();
		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] > 0) {
				ans += v[i] - c[i];
			}
		}
		System.out.println(ans);

	}
}
