import sys
def is_prime(num):
for j in range(2,num):
if (num % j) == 0:
return False
return True
def main(argv):
if (len(sys.argv) != 3):
sys.exit('Usage: prime_numbers2.py ')
low = int(sys.argv[1])
high = int(sys.argv[2])
if (low == 2):
print 2,
if (low % 2 == 0):
low += 1
for i in range(low,high,2):
if is_prime(i):
print i,
if __name__ == "__main__":
main(sys.argv[1:])