Problem Statement

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.

Constraints

• $S$ is a string of length $1$ between $1000$, inclusive.
• $S$ contains only lowercase English letters.

Sample Input 1Copy

apple

Sample Output 1Copy

apples

apple ends with e, so its plural form is apples.

Sample Input 2Copy

bus

Sample Output 2Copy

buses

bus ends with s, so its plural form is buses.

Sample Input 3Copy

box

Sample Output 3Copy

boxs