Задание №83365 ЕГЭ Информатике

b = 0
for A in range(100):
    ok = True
    for x in range(0, 100):
        for y in range(0, 100):
            for z in range(0, 100):
                if not ((70 > y + 2*x + z) or (A < 6*x) or (A < y) or (A < 2*z)):
                    ok = False
                    break
    if ok:
        b = A
print(b)