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

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

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

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

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

}