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 <cstdio>

int main()
{
  char s[4];
  scanf("%s", s);
  if (s[2])
  {
    printf("%c%c%c\n", s[2], s[1], s[0]);
  }
  else
  {
    puts(s);
  }
  return 0;
}
