#include<bits/stdc++.h>
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	if(a==b){
		cout<<"Y"<<endl<<a*b;
	}else cout<<"N"<<endl<<a*b;
	return 0;
}
/**************************************************************
	Problem: 1655
	User: panjinyan
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/