#include<bits/stdc++.h>
using namespace std;
int main(){
    int n=0,a=0,b=0,c=0,d=0,e=0,f=0;
    cin>>n;
    a=n/100000;
    b=n%100000-n%10000;
    c=n%10000-n%1000;
    d=n%1000-n%100;
    e=n%100-n%10;
    f=n%10;
    int m=0,l=0;
    b=b/10000;
    c=c/1000;
    d=d/100;
    e=e/10;
    m=a*100+b*10+c;
    l=f*100+e*10+d;
    if(m==l){
        cout<<"Y";
    }else{
        cout<<"N";
    }
}
/**************************************************************
	Problem: 1629
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/