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 (Clang 3.8.0) (judge verdict: Accepted)

#include <stdio.h>
int main(void) {
	
	int N, N1, N2  = 0, i, j = 1;

	scanf("%d", &N);

	N1 = N;

	for (i = 100; i != 0; i /= 10) {
		N2 += (N1 / i) * j;
		N1 %= i;
		j *= 10;
	}

	if (N == N2) printf("Yes\n");
	else printf("No\n");

	return 0;
}