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 C (GCC 9.2.1) (judge verdict: Wrong Answer)

#include<stdio.h>


int main(void){

    int N=10,count=0,judge=0;
    scanf("%d",&N);
    
    int a[N],b[N];

    for(int n=0;n<N;n++){
        scanf("%d %d",&a[n],&b[n]);
    }


    for(int n=0;n<N;n++){
        if(a[n]==b[n])count++;
        else count=0;
        printf("%d ",count);
        if(count==3)judge=1;
    }


    if(judge==1)printf("Yes");
    else printf("No");
    return 0;
}