import java.util.Scanner;
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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	}
} import java.util.Scanner; Scanner 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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	}
} 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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] v = new int[n];
		for(int i =0; i < n; i++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	} 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++){
			int vn = sc.nextInt();
			v[i] = vn;
		} int i =0; int i =0; i 0 i < n i n i++ i++ i {
			int vn = sc.nextInt();
			v[i] = vn;
		} {
			int vn = sc.nextInt();
			v[i] = vn;
		} int vn = sc.nextInt(); vn sc.nextInt() sc.nextInt sc v[i] = vn v[i] v i vn int sum = 0; sum 0 for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		} {
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		} int cn = sc.nextInt(); cn sc.nextInt() sc.nextInt sc if(cn < v[i]){
				sum += (v[i] - cn);
			} cn < v[i] cn v[i] v i {
				sum += (v[i] - cn);
			} sum += (v[i] - cn) sum (v[i] - cn) v[i] v i cn System.out.println(sum) System.out.println System.out System System.out sum 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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	}
} 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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	}
} Main
import java.util.Scanner;
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++){
			int vn = sc.nextInt();
			v[i] = vn;
		}
		int sum = 0;
		for(int i = 0; i < n; i++){
			int cn = sc.nextInt();
			if(cn < v[i]){
				sum += (v[i] - cn);
			}
		}
		System.out.println(sum);
	}
}