trello test

import itertools

letters = "acdegilmnoprstuw"
value = 25180466553932

def hsh(s):
    return reduce(lambda h, char: h * 37 + letters.index(char), s, 7)

def unhash(val):
    return unhash(val / 37) + letters[val % 37] if val > 7 else ''

tst = value
res = ""
while tst > 7:
    index = tst % 37
    assert index < len(letters)
    res = letters[index] + res
    tst = tst / 37

assert tst == 7
assert hsh(res) == value

print "Found: " + res + " for hash " + str(value)

print unhash(value)