n, k = map(int, input().split())

if n == k + 2 and k >= 2:
    edges = []
    for i in range(1, n):
        if i < k:
            w = 2
        elif i == k:
            w = -(2 * (k - 1) + 1)
        else:
            w = 2
        edges.append((i, i + 1, w))
    
    print("Yes")
    for e in edges:
        print(e[0], e[1], e[2])
else:
    print("No")