#include<bits/stdc++.h>
using namespace std;
int main()
{
	string a;
	char a2[1000];
	cin>>a;
	int j=1;
	for(int i=a.size()-1;i>=0;i--)
	{
		a2[j]=a[i];
		cout<<a2[j];
	}
	cout<<endl;
	if(a2==a)cout<<"yes";
	else cout<<"no";
	return 0;
}