#include<bits/stdc++.h>
#define int long long
using namespace std;
constexpr int BASE=1000000;
signed main(){
    int N,K; cin>>N>>K;
    if(K==N-1 || K==1)return puts("No"),0;
    if(K==2 && N%2==1)return puts("No"),0;
    puts("Yes");
    if(K==2){
        for(int i=0;i<N-1;i++){
            if(i%2==0)cout<<i+1<<' '<<i+2<<' '<<BASE-1<<endl;
            else cout<<i+1<<' '<<i+2<<' '<<-BASE<<endl;
        }
    }else{
        for(int i=0;i<K;i++){
            if(i==0)cout<<i+1<<' '<<i+2<<' '<<BASE*(K-1)-1<<endl;
            else cout<<i+1<<' '<<i+2<<' '<<-BASE<<endl;
        }
        for(int i=K;i<N-1;i++)cout<<K+1<<' '<<i+2<<' '<<' '<<BASE*(K-1)-1<<endl;
    }
}