Problem:
Score : 100 points

Problem Statement

Given are two strings S and T consisting of lowercase English letters. Concatenate T and S in this order, without space in between, and print the resulting string.

Constraints

S and T are strings consisting of lowercase English letters.

The lengths of S and T are between 1 and 100 (inclusive).

Input

Input is given from Standard Input in the following format:

S T

Output

Print the resulting string.

Sample Input 1

oder atc

Sample Output 1

atcoder

When S = oder and T = atc, concatenating T and S in this order results in atcoder.

Sample Input 2

humu humu

Sample Output 2

humuhumu

Solution in JavaScript (node.js v5.12) (judge verdict: Accepted)

'use strict'
const Main = (input) => {
	let xs = input.trim().split(' ');
    let len = xs.length;
    let ans = '';
    for(let i = len-1; i>=0; i--){
    ans += xs[i];
    }
    console.log(ans);
    
}
Main(require('fs').readFileSync('/dev/stdin','utf8'));