#include<iostream>
#include<vector>
#include<algorithm>
#include<set>
#include<numeric>
using namespace std;
using ll=long long;
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
template<class T> bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;}
template<class T> bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N,K;
    cin>>N>>K;
    if(K==1||K==N-1){
        cout<<"No"<<"\n";
        return 0;
    }
    if(K==2){
        if(N%2==1){
            cout<<"No"<<"\n";
        }else{
            cout<<"Yes"<<"\n";
            for(int i=0;i<N-1;i++){
                cout<<i+1<<" "<<i+2<<" ";
                if(i%2==0)cout<<N/2<<"\n";
                else cout<<-(N/2+1)<<"\n";
            }
        }
    }else{
        cout<<"Yes"<<"\n";
        for(int i=0;i<K-1;i++)cout<<i+1<<" "<<i+2<<" "<<-2<<"\n";
        for(int i=K;i<N;i++)cout<<K<<" "<<i+1<<" "<<2*(K-1)-1<<"\n";
    }
}