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<bits/stdc++.h>

int main()
{
	char s[103];
	scanf("%s",s+1);
	if (strlen(s+1)==2) puts(s+1);
	else{
		printf("%c%c%c\n",s[3],s[2],s[1]);
	}
	return 0;
}