#include <bits/stdc++.h>
using namespace std;

int main() {
    int Q;
    cin >> Q;
    while (Q--) {
        int N,T;
        cin >> N >> T;
        if(N <= 3) {
            cout << "Yes" << endl;
            for(int i = 1; i <= N; i++) {
                for(int j = i+1; j <= N; j++) {
                    if(i == 1 && j == 2) {
                        cout << T << endl;
                    }
                    else {
                        cout << i << " " << j << " " << 0 << endl;
                    }
                }
            }
        }
        else if(T%2 != 0 && T%N != 0) {
            cout << "No" << endl;
        }
        else if(T%N == 0) {
            cout << "Yes" << endl;
            for(int i = 1; i <= N; i++) {
                for(int j = i+1; j <= N; j++) {
                    cout << i << " " << j << " " << T/N << endl;
                }
            }
        }
        else {
            cout << "Yes" << endl;
            for(int i = 1; i <= N; i++) {
                for(int j = i+1; j <= N; j++) {
                    if(i == 1) {
                        cout << i << " " << j << " " << T/2 << endl;
                    }
                    else {
                        cout << i << " " << j << " " << 0 << endl;
                    }
                }
            }
        }
    }
}