Background

Description

Given a string, take the first 2 chars and return the string with the 2 chars added at both the front and back, so "kitten" yields"kikittenki". If the string length is less than 2, use whatever chars are there.

Format

Input

Output

Samples

kitten

"kikittenki"

Ha

"HaHaHa"

abc

"ababcab"

Limitation

1s, 1024KiB for each test case.