def solve():
primes = sieve(10000)
perm_sets = defaultdict(set)
for prime in primes:
if prime >= 1000:
perm_sets[frozenset(splitdigits(prime))].add(prime)
for perms in perm_sets.itervalues():
for x in perms:
for y in perms:
if x < y:
z = y + (y - x)
if z in perms and z not in (1487, 4817, 8147):
return int('%s%s%s' % (x, y, z))
def iscurious(i):
return i == sum(factorial(j) for j in splitdigits(i))