function each_cons(n, collection)
    [collection[i:(i + n - 1)] for i = 1:(length(collection) - n + 1)]
end

n = ["73167176531330624919225119674426574742355349194934",
     "96983520312774506326239578318016984801869478851843",
     "85861560789112949495459501737958331952853208805511",
     "12540698747158523863050715693290963295227443043557",
     "66896648950445244523161731856403098711121722383113",
     "62229893423380308135336276614282806444486645238749",
     "30358907296290491560440772390713810515859307960866",
     "70172427121883998797908792274921901699720888093776",
     "65727333001053367881220235421809751254540594752243",
     "52584907711670556013604839586446706324415722155397",
     "53697817977846174064955149290862569321978468622482",
     "83972241375657056057490261407972968652414535100474",
     "82166370484403199890008895243450658541227588666881",
     "16427171479924442928230863465674813919123162824586",
     "17866458359124566529476545682848912883142607690042",
     "24219022671055626321111109370544217506941658960408",
     "07198403850962455444362981230987879927244284909188",
     "84580156166097919133875499200524063689912560717606",
     "05886116467109405077541002256983155200055935729725",
     "71636269561882670428252483600823257530420752963450"]

println(maximum(map(digits -> prod(map(digit -> parse(Int, digit), split(digits, ""))), each_cons(5, reduce(*, n)))))
