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

if k == 1 or k == n-1:
    print("No")
else:
    if k == 2:
        edges = []
        current = 1
        for i in range(n-1):
            if i % 2 == 0:
                edges.append((current, current+1, 2))
            else:
                edges.append((current, current+1, -3))
            current += 1
        total = sum(w for u, v, w in edges)
        if total > 0:
            print("Yes")
            for u, v, w in edges:
                print(u, v, w)
        else:
            print("No")
    elif k == 3:
        edges = []
        current = 1
        for i in range(n-1):
            if i % 3 == 0:
                edges.append((current, current+1, 3))
            else:
                edges.append((current, current+1, -2))
            current += 1
        total = sum(w for u, v, w in edges)
        if total > 0:
            print("Yes")
            for u, v, w in edges:
                print(u, v, w)
        else:
            print("No")
    else:
        print("No")