def truncatableprime(n):
## from left to right ##
for i in range(len(str(n))):
if not p.isprime(int(str(n)[i:])):
return False
## from right to left
tmp = n
while tmp>0:
if not p.isprime(tmp):
return False
tmp = tmp/10
return True
count = 1
n = 10
sumofTP = 0
while count <= 11:
n = p.getnextprime(n)
if truncatableprime(n):
print n
sumofTP += n
count += 1
print "sum is ", sumofTP
##Ans: 748317 ##
