#include<iostream>
#include<vector>
#include<cassert>
using namespace std;
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int N,K;
	cin>>N>>K;
	vector<pair<pair<int,int>,int> >E;
	if(K==1);
	else if(K==2)
	{
		if(N%2==1);
		else
		{
			for(int i=2;i<=N;i++)E.push_back(make_pair(make_pair(i-1,i),i%2==0?N-1:-N));
		}
	}
	else if(K+2<=N)
	{
		for(int i=2;i<=K;i++)E.push_back(make_pair(make_pair(i-1,i),i==K?-3:0));
		for(int i=K+1;i<=N;i++)E.push_back(make_pair(make_pair(K,i),2));
	}
	else if(K==N-1);
	if(E.empty())cout<<"No\n";
	else
	{
		cout<<"Yes\n";
		for(auto[e,w]:E)
		{
			auto[u,v]=e;
			cout<<u+1<<" "<<v+1<<" "<<w<<"\n";
		}
	}
}