import java.util.Scanner;

import java.util.Arrays;
import java.util.ArrayList;

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		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();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

		System.out.println(total);
		
		
		
	}
}	 import java.util.Scanner; Scanner java.util import java.util.Arrays; Arrays java.util import java.util.ArrayList; ArrayList 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];
		int [] C = new int [N];
		
		for (int i=0; i<N; i++) {
			V[i] = sc.nextInt();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

		System.out.println(total);
		
		
		
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		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();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

		System.out.println(total);
		
		
		
	} main {
		Scanner sc = new Scanner(System.in);
		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();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

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

		System.out.println(total);
		
		
		
	}
} public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		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();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

		System.out.println(total);
		
		
		
	}
} Main
import java.util.Scanner;

import java.util.Arrays;
import java.util.ArrayList;

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		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();
		}
		int total = 0;
		for (int i=0; i<N; i++) {
			C[i] = sc.nextInt();
			if(V[i]>C[i]) {
				total += V[i] - C[i];
			}
		}
		

		System.out.println(total);
		
		
		
	}
}	
