Q=int(input())

for _ in range(Q):
    N,T=map(int,input().split())

    if T%2==1:
        if T%N==0:
            print("Yes")
            for i in range(1,N+1):
                for j in range(i+1,N+1):
                    print(i,j,T//N)
        else:
            print("No")
    else:
        print("Yes")
        for i in range(1,N+1):
            for j in range(i+1,N+1):
                if i==1:
                    print(i,j,T//2)
                else:
                    print(i,j,0)