A15528 | SSeeeeiinngg DDoouubbllee

A palindrome is a string that reads the same backward as forward. For example, the strings $\texttt{z}$ , $\texttt{aaa}$ , $\texttt{aba}$ , and $\texttt{abccba}$ are palindromes, but $\texttt{codeforces}$ and $\texttt{ab}$ are not.

The double of a string $s$ is obtained by writing each character twice. For example, the double of $\texttt{seeing}$ is $\texttt{sseeeeiinngg}$ .

Given a string $s$ , rearrange its double to form a palindrome. Output the rearranged string. It can be proven that such a rearrangement always exists.

The first line of input contains $t$ ( $1 \leq t \leq 1000$ ) — the number of test cases.

The only line of each test case contains a single string $s$ ( $1 \leq |s| \leq 100$ ) consisting only of lowercase English letters.

Note that the sum of $|s|$ over all test cases is not bounded.

For each test case, output a palindromic string of length $2 \cdot |s|$ that is a rearrangement of the double of $s$ .