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){

unsigned int a,b,n;

scanf("%u %u %u",&a,&b,&n);


while(n/2 > 0){

if(a%2 == 1) a -= 1;

b += a/2;
a -= a/2;

if(b%2 == 1) b -= 1;

a += b/2;
b -= b/2;

n -= 2;
}

if(n == 1){
a -= 1;
b += a/2;
a -= a/2;
}

printf("%u %u",a,b);

return 0;

}