#include<iostream>
using namespace std;
int N,K;
main()
{
	cin>>N>>K;
	int pos=(N-1+K-1)/K;
	int neg=N-1-pos;
	int b=K-1;
	if(b*pos-neg>0)
	{
		cout<<"Yes"<<endl;
		for(int i=0;i<N-1;i++)
		{
			cout<<i+1<<" "<<i+2<<" ";
			if(i%K==0)cout<<b<<endl;
			else cout<<-1<<endl;
		}
	}
	else cout<<"No"<<endl;
}