import MathFunctions, time
start_time = time.time()
found, i = "", 9999
while found == "":
concatenated = ""
for n in range(1, 5):
current = i * n
concatenated += str(current)
if int(concatenated) < 123456789:
continue
elif int(concatenated) > 987654321:
break
elif MathFunctions.is_pandigital(int(concatenated)):
found = concatenated
i -= 1
print(found)
print("--- %s seconds ---" % (time.time() - start_time))
