Lura was bored and decided to make a simple language using the five letters $\texttt{a}$, $\texttt{b}$, $\texttt{c}$, $\texttt{d}$, $\texttt{e}$. There are two types of letters:

• vowels — the letters $\texttt{a}$ and $\texttt{e}$. They are represented by $\textsf{V}$.
• consonants — the letters $\texttt{b}$, $\texttt{c}$, and $\texttt{d}$. They are represented by $\textsf{C}$.

A word in the language is a sequence of syllables. Lura has written a word in the language, but she doesn't know how to split it into syllables. Help her break the word into syllables.

For example, given the word $\texttt{bacedbab}$, it would be split into syllables as $\texttt{ba.ced.bab}$ (the dot $\texttt{.}$ represents a syllable boundary).

Input

The input consists of multiple test cases. The first line contains an integer $t$ ($1 \leq t \leq 100$) — the number of test cases. The description of the test cases follows.

The first line of each test case contains an integer $n$ ($1 \leq n \leq 2 \cdot 10^5$) — the length of the word.

The second line of each test case contains a string consisting of $n$ lowercase Latin characters  — the word.

All words given are valid words in the language; that is, they only use the letters $\texttt{a}$, $\texttt{b}$, $\texttt{c}$, $\texttt{d}$, $\texttt{e}$, and each word is made up of several syllables.

The sum of $n$ over all test cases does not exceed $2 \cdot 10^5$.

Output

For test case, output a string denoting the word split into syllables by inserting a dot $\texttt{.}$ between every pair of adjacent syllables.

If there are multiple possible splittings, output any of them. The input is given in such a way that at least one possible splitting exists.

见题面 Input 部分

见题面 Output 部分