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

if k == 1 or k == n - 1:
    print("No")
else:
    edges = []
    for i in range(n - 1):
        if i < k:
            if i == 0:
                edges.append(2)
            elif i < k - 1:
                edges.append(0)
            else:
                edges.append(-3)
        else:
            edges.append(edges[i - k])
    
    print("Yes")
    for i in range(n - 1):
        print(i + 1, i + 2, edges[i])