Problem:
Score : 100 points

Problem Statement

You are given a three-digit positive integer N.

Determine whether N is a palindromic number.

Here, a palindromic number is an integer that reads the same backward as forward in decimal notation.

Constraints

100≤N≤999

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

If N is a palindromic number, print Yes; otherwise, print No.

Sample Input 1

575

Sample Output 1

Yes

N=575 is also 575 when read backward, so it is a palindromic number. You should print Yes.

Sample Input 2

123

Sample Output 2

No

N=123 becomes 321 when read backward, so it is not a palindromic number. You should print No.

Sample Input 3

812

Sample Output 3

No

Solution in C (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>

int main(void)
{
	int i1, i2, c = 0, n = 0, N1 = 0, N2 = 0;
	
	for(i1 = 0; i1 < 3; i1++){
		c = getchar();
		n = (c - '0');
		for(i2 = 0; i2 < i1; i2++){
			n *= 10;
		}
		N1 += n;
		n = (c - '0');
		for(i2 = 2; i1 < i2; i2--){
			n *= 10;
		}
		N2 += n;
	}
	
	if(N1 == N2){
		printf("Yes");
	}else{
		printf("No");
	}
	return 0;
}