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: Runtime Error)

const fs = require("fs");

let input = fs.readFileSync("/dev/stdin", { encoding: "utf8" });
input = input.slice(0, input.length - 1);

const ret = input.split(" ");
console.log(ret[1] + ret[0]);