Problem:
Score : 100 points

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.

Input

Input is given from Standard Input in the following format:

S

Output

Print the plural form of the given Taknese word.

Sample Input 1

apple

Sample Output 1

apples

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

Sample Input 2

bus

Sample Output 2

buses

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

Sample Input 3

box

Sample Output 3

boxs

Solution in Java (OpenJDK 11.0.6) (judge verdict: Accepted)

    import java.util.*;
     
    public class Main{
        
        public static void main(String args[])
        {
            Scanner sc = new Scanner(System.in);
            
            String word;
            String neww=new String();
            word=sc.next();
            int lenth=word.length();
            if(word.charAt(lenth-1)=='s')
            {
                neww=word+"es";
            }
            else
            {
                neww=word+"s";
            }
            System.out.println(neww);
        }
    }