9647: ABC179 —— A - Plural Form
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Description
In the Kingdom of AtCoder, people use a language called Taknese, which uses lowercase English letters.
In Taknese, the plural form of a noun is spelled based on the following rules:
- If a noun's singular form does not end with `s`, append `s` to the end of the singular form.
- If a noun's singular form ends with `s`, append `es` to the end of the singular form.
You are given the singular form $S$ of a Taknese noun. Output its plural form.
In Taknese, the plural form of a noun is spelled based on the following rules:
- If a noun's singular form does not end with `s`, append `s` to the end of the singular form.
- If a noun's singular form ends with `s`, append `es` to the end of the singular form.
You are given the singular form $S$ of a Taknese noun. Output its plural form.
Input
Input is given from Standard Input in the following format:
```
$S$
```
```
$S$
```
Output
Print the plural form of the given Taknese word.
Constraints
- $S$ is a string of length $1$ between $1000$, inclusive.
- $S$ contains only lowercase English letters.
- $S$ contains only lowercase English letters.
Sample 1 Input
apple
Sample 1 Output
apples
apple ends with e, so its plural form is apples.
Sample 2 Input
bus
Sample 2 Output
buses
bus ends with s, so its plural form is buses.
Sample 3 Input
box
Sample 3 Output
boxs