#!/usr/bin/python

import random as r

while True:

d = [r.randrange(10) for x in range(15)]

d[3] = 7

s = sum(d[0:7] + d[11:14])

d[10] = s % 10

d[11] = s + d[10]

if (abs(d[5] * 100 + d[8] * 10 + d[12] - 637.5) < 57.5): break

print("Your dungeon key: " + ''.join(map(str,d)))