number = "73167176531330624919225119674426574742355349194934" +\
         "96983520312774506326239578318016984801869478851843" +\
         "85861560789112949495459501737958331952853208805511" +\
         "12540698747158523863050715693290963295227443043557" +\
         "66896648950445244523161731856403098711121722383113" +\
         "62229893423380308135336276614282806444486645238749" +\
         "30358907296290491560440772390713810515859307960866" +\
         "70172427121883998797908792274921901699720888093776" +\
         "65727333001053367881220235421809751254540594752243" +\
         "52584907711670556013604839586446706324415722155397" +\
         "53697817977846174064955149290862569321978468622482" +\
         "83972241375657056057490261407972968652414535100474" +\
         "82166370484403199890008895243450658541227588666881" +\
         "16427171479924442928230863465674813919123162824586" +\
         "17866458359124566529476545682848912883142607690042" +\
         "24219022671055626321111109370544217506941658960408" +\
         "07198403850962455444362981230987879927244284909188" +\
         "84580156166097919133875499200524063689912560717606" +\
         "05886116467109405077541002256983155200055935729725" +\
         "71636269561882670428252483600823257530420752963450"

highest_products = []

number = list(number)
for i, n in enumerate(number):
    number[i] = int(number[i])

for i, n in enumerate(number):
    product = n
    try:
        for j in range(1, 13):
            product *= number[i + j]
    except IndexError:
        product = 0
    highest_products.append(product)

print(max(highest_products))