from collections import Counter


def check_num(num):
    numarr = [int(d) for d in (str(num))]
    for p in range(1, 6):
        if numarr[p-1] > numarr[p]:
            return False
    c = Counter(str(num))
    return len({k: v for k, v in c.items() if v >= 2}) > 0


def check_num_grp(num):
    numarr = [int(d) for d in (str(num))]
    for p in range(1, 6):
        if numarr[p-1] > numarr[p]:
            return False
    c = Counter(str(num))
    return len({k: v for k, v in c.items() if v == 2}) > 0


def test_day4a():
    counter = 0
    for num in range(168630, 718099):
        if check_num(num) is True:
            counter += 1
    assert counter == 1686


def test_day4b():
    counter = 0
    for num in range(168630, 718099):
        if check_num_grp(num) is True:
            counter += 1
    assert counter == 1145