错了两个点，求改

#include <bits/stdc++.h>

using namespace std;

int main(){
	long long a,b;
	cin>>a>>b;
	if(b==0){
		cout<<"NO"<<endl<<"YES";
		return 0;
	}
	if(a<0 && b%2!=0){
		cout<<"YES"<<endl;
	}else{
		cout<<"NO"<<endl;
	}
	if(a%2==1){
		cout<<"YES";
	}else{
		cout<<"NO";
	}
	return 0;
}