import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	}
} import java.util.*; util.* java public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	}
} Main public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		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++){
			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 sum = 0; sum 0 for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		} {
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		} int vi = V[i]; vi V[i] V i int ci = sc.nextInt(); ci sc.nextInt() sc.nextInt sc if(vi>ci)sum = sum + vi -ci; vi>ci vi ci sum = sum + vi -ci sum sum + vi -ci sum + vi sum vi ci 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);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	}
} public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	}
} Main
import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);

		// 整数の入力
		int n = sc.nextInt();

		int[] V = new int[n];

		for(int i=0;i<n;i++){
			V[i] = sc.nextInt();
		}

		int sum = 0;

		for(int i=0;i<n;i++){
			int vi = V[i];
			int ci = sc.nextInt();
			if(vi>ci)sum = sum + vi -ci;
		}

		// 出力
		System.out.println(sum);
	}
}