#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,a,b,c;
    cin>>n;
    a=n%10*100;
    b=n/10%10*10;
    c=n/100%10*1;
    if(n==(a+b+c)) cout<<"Y";
    else cout<<"N";
}
/**************************************************************
	Problem: 1628
	User: yangjunwen
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/