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<stdio.h>
#include<string.h>


int main(){
	
	char ch[8];
	scanf("%s",ch);
	int n=strlen(ch);
	if(n==2)printf("%s",ch);
	else printf("%c%c%c",ch[2],ch[1],ch[0]);
	return 0;
}