Problem:
Score : 100 points

Problem Statement

You are given two positive integers a and b.
Let x be the average of a and b.
Print x rounded up to the nearest integer.

Constraints

a and b are integers.

1 \leq a, b \leq 100

Input

Input is given from Standard Input in the following format:

a b

Output

Print x rounded up to the nearest integer.

Sample Input 1

1 3

Sample Output 1

2

The average of 1 and 3 is 2.0, and it will be rounded up to the nearest integer, 2.

Sample Input 2

7 4

Sample Output 2

6

The average of 7 and 4 is 5.5, and it will be rounded up to the nearest integer, 6.

Sample Input 3

5 5

Sample Output 3

5

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.util.Arrays;
import java.util.Scanner;

public class Main {
    	public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	char[] n = sc.next().toCharArray();
    	char[] s = sc.next().toCharArray();

    	 Arrays.sort(n);
    	 Arrays.sort(s);

        String nn_last = new String(n);
        String ss_last = new String(s);
        System.out.println(nn_last.compareTo(ss_last) < 0 ? "Yes" : "No");
    	}
    }