problem 8.py

# creating the 1000-digit number
def generate_input_number():
    number = """73167176531330624919225119674426574742355349194934
                   96983520312774506326239578318016984801869478851843
                   85861560789112949495459501737958331952853208805511
                   12540698747158523863050715693290963295227443043557
                   66896648950445244523161731856403098711121722383113
                   62229893423380308135336276614282806444486645238749
                   30358907296290491560440772390713810515859307960866
                   70172427121883998797908792274921901699720888093776
                   65727333001053367881220235421809751254540594752243
                   52584907711670556013604839586446706324415722155397
                   53697817977846174064955149290862569321978468622482
                   83972241375657056057490261407972968652414535100474
                   82166370484403199890008895243450658541227588666881
                   16427171479924442928230863465674813919123162824586
                   17866458359124566529476545682848912883142607690042
                   24219022671055626321111109370544217506941658960408
                   07198403850962455444362981230987879927244284909188
                   84580156166097919133875499200524063689912560717606
                   05886116467109405077541002256983155200055935729725
                   71636269561882670428252483600823257530420752963450"""
    number = number.split("\n")
    original_number = ""
    for row in number:
        row = row.strip()
        original_number += row
    return original_number


# function to get the multiplication of given number.
# input type will be string.
# inside the function every dgit will be converted to integer.
def check_multi(number):
    multiplication = 1
    for digit in number:
        multiplication *= int(digit)
    return multiplication


def get_max(number, adjecent):
    maximum = 0
    for i in range(len(number) - adjecent):
        adjacent_four = number[i:i + adjecent]
        multi = check_multi(adjacent_four)

        if multi > maximum:
            maximum = multi
    return maximum


number = generate_input_number()
print(get_max(number, 13))