import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	}
}

//Arrays.sort(array, (a, b) -> Integer.compare(a[0], b[0]));

 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[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	}
} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	} main {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n=sc.nextInt(); n sc.nextInt() sc.nextInt sc int[] arrayv=new int[n] arrayv new int[n] n arrayc=new int[n]; arrayc new int[n] n int sum=0; sum 0 for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			arrayv[i]=sc.nextInt();
		} {
			arrayv[i]=sc.nextInt();
		} arrayv[i]=sc.nextInt() arrayv[i] arrayv i sc.nextInt() sc.nextInt sc for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			arrayc[i]=sc.nextInt();
		} {
			arrayc[i]=sc.nextInt();
		} arrayc[i]=sc.nextInt() arrayc[i] arrayc i sc.nextInt() sc.nextInt sc for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		} int i=0; int i=0; i 0 i<n i n i++ i++ i {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		} {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		} sum+=Math.max(0, arrayv[i]-arrayc[i]) sum Math.max(0, arrayv[i]-arrayc[i]) Math.max Math 0 arrayv[i]-arrayc[i] arrayv[i] arrayv i arrayc[i] arrayc i System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	}
} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n=sc.nextInt();
		int[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	}
} 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[] arrayv=new int[n],arrayc=new int[n];
		int sum=0;

		for(int i=0;i<n;i++) {
			arrayv[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			arrayc[i]=sc.nextInt();
		}
		for(int i=0;i<n;i++) {
			sum+=Math.max(0, arrayv[i]-arrayc[i]);
		}

		System.out.println(sum);
	}
}

//Arrays.sort(array, (a, b) -> Integer.compare(a[0], b[0]));


