#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll sum=1;
int main(){
	ll yo,t;
	cin>>yo>>t;
	for(int i=0;i<t;i++){
		sum*=yo*t;
	}
	if(sum<0) cout<<"YES"<<endl;
	else cout<<"NO"<<endl;
	if(sum%2!=0) cout<<"YES"<<endl;
	else cout<<"NO"<<endl;
	return 0;
}