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++) {
			V[i] = sc.nextInt();
		}
		
		int[] C = new int[N];
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				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);
		
		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();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		}
		
		System.out.println(ans);
	
	}
	
} 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++) {
			V[i] = sc.nextInt();
		}
		
		int[] C = new int[N];
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		}
		
		System.out.println(ans);
	
	} 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();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		}
		
		System.out.println(ans);
	
	} 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 long ans = 0; ans 0 for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		} int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		} {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		} if (C[i] < V[i]) {
				ans += V[i] - C[i];
			} C[i] < V[i] C[i] C i V[i] V i {
				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);
		
		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();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		}
		
		System.out.println(ans);
	
	}
	
} 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++) {
			V[i] = sc.nextInt();
		}
		
		int[] C = new int[N];
		for (int i = 0; i < N; i++) {
			C[i] = sc.nextInt();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				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);
		
		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();
		}
		
		long ans = 0;
		for (int i = 0; i < N; i++) {
			if (C[i] < V[i]) {
				ans += V[i] - C[i];
			}
		}
		
		System.out.println(ans);
	
	}
	
}

