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: Accepted)

#include<stdio.h>

int main()
{
	int i = 0;
	char s[4], tmp;
	scanf("%s", s);

	while (s[i] != '\0') {
		i++;
	}

	if (i == 3) {
		tmp = s[0];
		s[0] = s[2];
		s[2] = tmp;
		printf("%s\n", s);
	}
	else {
		printf("%s\n", s);
	}

	return 0;

}