#include<iostream>
using namespace std;
int Q,N,T;
int A[8][8];
main()
{
	cin>>Q;
	for(;Q--;)
	{
		cin>>N>>T;
		if(N==2)
		{
			if(T%2==0)
			{
				cout<<"Yes"<<endl;
				cout<<"1 2 "<<T/2<<endl;
			}
			else cout<<"No"<<endl;
			continue;
		}
		int a=2,b=N,c=N-2;
		bool fn=false;
		for(int x=0;!fn&&a*x<=T;x++)
		{
			for(int y=0;!fn&&a*x+b*y<=T;y++)
			{
				int rest=T-a*x-b*y;
				if(rest%c!=0)continue;
				int z=rest/c;
				fn=true;
				for(int i=0;i<N;i++)for(int j=i+1;j<N;j++)
				{
					A[i][j]=0;
					if(i==0)A[i][j]+=x;
					A[i][j]+=y;
					if(i!=0)A[i][j]+=z;
				}
			}
		}
		if(fn)
		{
			cout<<"Yes"<<endl;
			for(int i=0;i<N;i++)for(int j=i+1;j<N;j++)
			{
				cout<<i+1<<" "<<j+1<<" "<<A[i][j]<<endl;
			}
		}
		else cout<<"No"<<endl;
	}
}