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.

Examples

Input

abc


Output

cba


Input

ac


Output

ac
#include <iostream>
#include <string.h>
using namespace std;
int main(void){
 char s[4];
 cin>>s;
 int N;
 N=strlen(s);
 if(N==2) cout<<s;
 else cout<<s[2]<<s[1]<<s[0];
 return 0;
    
}
