import java.util.Scanner;

public class Main {
	public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	}
} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	}
} Main public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	} 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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	} 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] = sc.nextInt() v[i] v i sc.nextInt() sc.nextInt sc int[] c = new int[n]; c new int[n] n 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 max = 0; max 0 for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		} {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		} if (v[i] > c[i]) {
				max += v[i] - c[i];
			} v[i] > c[i] v[i] v i c[i] c i {
				max += v[i] - c[i];
			} max += v[i] - c[i] max v[i] - c[i] v[i] v i c[i] c i System.out.println(max) System.out.println System.out System System.out max String ... args args public class Main {
	public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	}
} public class Main {
	public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	}
} Main
import java.util.Scanner;

public class Main {
	public static void main(String ... args) throws Exception {
		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();
		}
		int[] c = new int[n];
		for (int i = 0; i < n; i++) {
			c[i] = sc.nextInt();
		}
		int max = 0;
		for (int i = 0; i < n; i++) {
			if (v[i] > c[i]) {
				max += v[i] - c[i];
			}
		}
		System.out.println(max);
	}
}
