def p35():
T = lc.sieve_of_eratosthenes(1000000)
S = [sorted(str(p)) for p in T]
C = []
for s in S:
if S.count(s) == len(s):
C.append(str(s))
print sorted(str(c) for c in C)
print len(C)
def p10():
print sum(lc.sieve_of_eratosthenes(2*10**6))
def p3():
print lc.sieve_of_eratosthenes(600851475143)[-1:]
