Untitled

#include <iostream>
using namespace std;
int main()
{
	string s;
	int b=0;
	cin >> s;
	int n = s.length();
	for (int i = 1; (i-1) < n; i++)
	{
		if (s[i - 1] == s[s.length() - i]) b++;
	}
	if (b==n)
	{
		cout << "Yes";
	}
	else
	{
		cout << "No";
	}
}