import math
def correlation(l1, l2):
    n = min(len(l1), len(l2))
    sum1 = sum(l1)
    sum2 = sum(l2)
    sum1sq = sum(now ** 2 for now in l1)
    sum2sq = sum(now ** 2 for now in l2)
    sum12 = sum(x * y for x, y in zip(l1, l2))

    part1 = n * sum12 - sum1 * sum2
    part2 = math.sqrt((n * sum1sq - sum1 ** 2) * (n * sum2sq - sum2 ** 2))

    try:
        corr = part1 / part2
        return corr
    except ZeroDivisionError:
        print("Ошибка деления на ноль!")
        return