Problem:
Score : 100 points

Problem Statement

You are given a string S of length 2 or 3 consisting of lowercase English letters. If the length of the string is 2, print it as is; if the length is 3, print the string after reversing it.

Constraints

The length of S is 2 or 3.

S consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S

Output

If the length of S is 2, print S as is; if the length is 3, print S after reversing it.

Sample Input 1

abc

Sample Output 1

cba

As the length of S is 3, we print it after reversing it.

Sample Input 2

ac

Sample Output 2

ac

As the length of S is 2, we print it as is.

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include <stdio.h>
int main(void){
 int c=2,i;
 char a[4];
 char b[4];
 
 scanf("%s",a);
 if(a[2]=='\0'){
     printf("%s",a);
 return 0;
 }
 
     for(i=0;i<3;i++){
         b[c]=a[i];
         c--;
     }
     printf("%s",b);
 
 
 return 0;
}