prime = 1

def size(prime):
    while prime <= 1000:
        checker(prime)
    if prime > 1000:
        print "finished"


def checker(prime):
    if prime == 2:
        print prime
        adder(prime)
    elif prime == 3:
        print prime
        adder(prime)
    elif prime == 5:
        print prime
        adder(prime)
    elif prime == 7:
        print prime
        adder(prime)
    elif prime%3 == 0:
        adder(prime)
    elif prime%5 == 0:
        adder(prime)
    elif prime%7 == 0:
        adder(prime)
    else:
        print prime
        adder(prime)


def adder(prime):
    prime = prime+1
    size(prime)

size(prime)