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(){
int a,b,k,d,n,j=0;

scanf("%d %d %d",&a,&b,&k);

if(k%2==1){
n=(k-1)/2;
d++;
}else{
n=k/2;
}


for(j=0;j<=n;j++){
a=a/2;
b=a+b;
b=b/2;
b=b+a;
}

if(d==1){
a=a/2;
b=b+a;
}
printf("%d %d",&a,&b);
return 0;
}