test

def per(a, b):
    return not set(a).isdisjoint(set(b))


familys = []

parents_id = [123, 124, 125, 122, 222, 222]
childs_id = [122, 122, 126, 126, 223, 224]
ob = []
vse = False

for i in range(len(parents_id)):
    familys.append([parents_id[i], childs_id[i]])

while not vse:
    vse = True
    ob = []
    for i in range(len(familys)-1):
        if per(familys[i], familys[i+1]):
            vse = False
            ob.append(i)
    for i in ob[::-1]:
        familys[i].extend(familys[i+1])
        del familys[i+1]
for i in range(len(familys)):
    familys[i] = list(set(familys[i]))
for i in range(len(familys)):
    timing = [[], [], []]
    for t in familys[i]:
        if t not in parents_id:
            timing[2].append(t)
        elif t not in childs_id:
            timing[0].append(t)
        else:
            timing[1].append(t)
    familys[i] = timing