/* package whatever; // don't place package name! */
 
import java.util.Scanner;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
	Scanner scan = new Scanner(System.in);
    int size = scan.nextInt();
    long arr1[] = new long [size];
    long arr2[] = new long [size];
    for(int i = 0; i < size; i++){
        arr1[i] = scan.nextInt();
    }
    for(int i = 0; i < size; i++){
        arr2[i] = scan.nextInt();
    }
    long tmp = 0;
    for(int i = 0; i < size; i++){
        tmp+= Math.abs(arr2[i] - arr1[i]);
    }
    System.out.println (tmp / 2);
	}
}

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

Mwo2IDMgMQowIDAgMTA=

3
6 3 1
0 0 10