function compute(n::Int, digits::AbstractString)::Int
    digits = [parse(Int, digit) for digit ∈ replace(digits, "\n" => "")]
    max_product = 0
    for i ∈ 1:length(digits) - n + 1
        if 0 ∈ digits[i:i+n-1] continue end
        cur_product = prod(digits[i:i+n-1])
        if cur_product > max_product max_product = cur_product end
    end
    return max_product
end
