#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#include <stack>
#include <array>
#include <list>
#include <atcoder/all>
#define popcount __builtin_popcount
using namespace std;
using namespace atcoder;
typedef long long ll;
typedef pair<int, int> P;

int main()
{
    int t; cin>>t;
    while(t--){
        int n, t;
        cin>>n>>t;
        if(n==2){
            if(t%2!=0){
                cout<<"No"<<endl;
            }else{
                cout<<"Yes"<<endl;
                cout<<1<<" "<<2<<" "<<t/2<<endl;
            }
            continue;
        }
        if(n==3){
            cout<<"Yes"<<endl;
            cout<<1<<" "<<2<<" "<<t<<endl;
            cout<<2<<" "<<3<<" "<<0<<endl;
            cout<<1<<" "<<3<<" "<<0<<endl;
            continue;
        }
        if(n==4){
            if(t%2!=0){
                cout<<"No"<<endl;
            }else{
                cout<<"Yes"<<endl;
                cout<<1<<" "<<2<<" "<<0<<endl;
                cout<<1<<" "<<3<<" "<<0<<endl;
                cout<<1<<" "<<4<<" "<<0<<endl;
                cout<<2<<" "<<3<<" "<<t/2<<endl;
                cout<<2<<" "<<4<<" "<<t/2<<endl;
                cout<<3<<" "<<4<<" "<<t/2<<endl;
            }
            continue;
        }
        bool ok=0;
        for(int y=0; y*(n-2)<=t; y++){
            if((t-y*(n-2))%2!=0) continue;
            int x=(t-y*(n-2))/2;
            cout<<"Yes"<<endl;
            for(int i=0; i<n; i++){
                for(int j=0; j<i; j++){
                    if(j) cout<<j+1<<" "<<i+1<<" "<<y<<endl;
                    else cout<<j+1<<" "<<i+1<<" "<<x<<endl;
                }
            }
            ok=1;
            break;
        }
        if(!ok) cout<<"No"<<endl;
    }
    return 0;
}