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Problem Statement

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

Output the string $T$ determined as follows.

• If the last character of $S$ is e, $T$ is the string obtained by appending r to the end of $S$.
• If the last character of $S$ is not e, $T$ is the string obtained by appending er to the end of $S$.

Constraints

• $S$ is a string consisting of lowercase English letters.
• The length of $S$ is between $1$ and $10$, inclusive.

Input

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

• $S$

Output

Output the answer.

live

liver

The last character of live is e, so the string liver, obtained by appending r to the end of live, is the string $T$ to be outputted.

femur

femurer

The last character of femur is not e, so the string femurer, obtained by appending er to the end of femur, is the string $T$ to be outputted.

chimpanzee

chimpanzeer

The last character of chimpanzee is e, so the string chimpanzeer, obtained by appending r to the end of chimpanzee, is the string $T$ to be outputted.

• Source: AtCoder ABC 476 A