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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

function Main(input) {
    var input = input.split('\n');
    var s = input[0].split('')
    var t = input[1].split('')
    var ss = s.sort((a, b) => a < b ? -1 : 1).toString();
    var tt = t.sort((a, b) => a < b ? -1 : 1).toString();
    var sstt = [ss, tt];
    var x = [ss, tt];
    var Sort = sstt.sort((a, b) => a < b ? -1 : 1);
        if (x === Sort) {
            console.log('No');
        }
    else if (x[0] === Sort[0]) {
        console.log('Yes');
    } else {
        console.log('No');
    }

    }
Main(require('fs').readFileSync('/dev/stdin', 'utf8'));