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 Python (3.4.3) (judge verdict: Runtime Error)

import argparse

def make_parser():
    parser = argparse.ArgumentParser

    parser.add_argument('S')
    parser.add_argument('T')

    args = parser.parse_args()

    return args

def main():
    args = make_parser()
	T = arg.T
    S = arg.S
    
    printf(S + T)


if __name__ == "__main__":
    main()