for _ in range(int(input())):
    n, t = map(int, input().split())
    if t % 2 == 0:
        print('Yes')
        for j in range(2, n + 1):
            print(1, j, t // 2)
        for i in range(2, n + 1):
            for j in range(i + 1, n + 1):
                print(i, j, 0)
    elif n == 3:
        print('Yes')
        print(1, 2, 0)
        print(1, 3, 0)
        print(2, 3, t)
    elif n % 2 == 1 and t >= n - 2:
        print('Yes')
        r = (t - (n - 2)) // 2
        for j in range(2, n + 1):
            print(1, j, r)
        for i in range(2, n + 1):
            for j in range(i + 1, n + 1):
                print(i, j, 1)
    else:
        print('No')