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