2847: ABC-179-A -- Plural Form

Memory Limit：128 MB Time Limit：1.000 S
Judge Style：Text Compare Creator：
Submit：11 Solved：6

Description

Time Limit: 2 sec / Memory Limit: 1024 MB

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 between 1 ~ 1000, inclusive.
  • S contains only lowercase English letters.


Input

Input is given from Standard Input in the following format: 

S

Output

Output

Print the plural form of the given Taknese word.

Sample Input Copy 

apple

Sample Output Copy 

apples

Source/Category

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