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.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		//String s = sc.next();
		//String t = sc.next();
		long n = sc.nextLong();
		long m = sc.nextLong();
		//long k = sc.nextLong();
		//long count=0;

		/*for(int i=0;i<3;i++) {
			if(s.substring(i,i+1).equals(s.substring(i+1,i+2))) {
				count++;
			}else if(i!=2){
				count=0;
			}
		}*/
		/*if(n*m<=k) {
			System.out.println(n*m);
		}else{
			System.out.println(k);
		}*/
		System.out.println((n+m)/2);
	}
}