#include<bits/stdc++.h>
using namespace std;
int main(){
	int a;
	float b,c;
	cin>>a;
	b=a/100;
	c=a%100;
	if(b==c){
		cout<<"yes"; 
	}else{
		cout<<"no";
	} 
	return 0;
}

/**************************************************************
	Problem: 1647
	User: fuhoubin
	Language: C++
	Result: Wrong Answer
****************************************************************/