#!/usr/bin/python

# vars
primes = [1]*0 # list of known primes
candidate = 2

print "prime numbers"

# algorithm
while 1:
  isprime = 1
  for prime in primes:
    if candidate % prime == 0:
      isprime = 0
      break
  if isprime:
    print candidate
    primes.append(candidate)
  candidate += 1