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Problem Statement

You are given a string $S$ consisting of lowercase English letters.

Output the string obtained by inserting o between each pair of adjacent characters of $S$.

Constraints

• $S$ is a string of length between $2$ and $10$ (inclusive) consisting of lowercase English letters.

Input

The input is given from Standard Input in the following format:

• $S$

Output

Output the answer.

mtr

motor

mnclr

monocolor

oo

ooo

• Source: AtCoder ABC 475 A