#include <iostream>
using namespace std;
int main()
{
int x;
cin>>x;
int x1,y=0;

for (int xx=x; xx>0; xx=xx/10)
{
x1=xx%10;
y=y*10+x1;
}
if(x==y)
{
cout<<"Yes";
}
else
{
cout<<"No";
}

return 0;
}