import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[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(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		}
		System.out.println(ans);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		}
		System.out.println(ans);
	} main {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[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 ans=0; ans 0 int[] a = new int[n]; a new int[n] n int[] b = new int[n]; b new int[n] n for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			a[i] = sc.nextInt();
		} {
			a[i] = sc.nextInt();
		} a[i] = sc.nextInt() a[i] a i sc.nextInt() sc.nextInt sc for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			b[i] = sc.nextInt();
		} {
			b[i] = sc.nextInt();
		} b[i] = sc.nextInt() b[i] b i sc.nextInt() sc.nextInt sc for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		} {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		} if(a[i]-b[i] > 0) ans += a[i]-b[i]; a[i]-b[i] > 0 a[i]-b[i] a[i] a i b[i] b i 0 ans += a[i]-b[i] ans a[i]-b[i] a[i] a i b[i] b 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(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		}
		System.out.println(ans);
	}
} public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[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(),ans=0;
		int[] a = new int[n];
		int[] b = new int[n];
		for(int i=0; i<n; i++) {
			a[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			b[i] = sc.nextInt();
		}
		for(int i=0; i<n; i++) {
			if(a[i]-b[i] > 0) ans += a[i]-b[i];
		}
		System.out.println(ans);
	}
}
