14 (1 система)

#https://inf-ege.sdamgia.ru/problem?id=47218
for x in range(15):
    a = 1 * 15**4 + 2 * 15**3 + 3 * 15**2 + x*15 + 5 + 1 * 15**4 + x * 15**3 + 2 * 15**2 + 3 * 15 + 3
    if a % 14 == 0:
        print(x, a // 14)