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