##my way
##def getter():
##        value = int(input("give me a number: "))
##        return value
##
##def tester(num):
##        if num%2 ==0 :
##            num = "prime"
##        else:
##            num = "not prime"
##        return num
##def printer():
##    print (tester(getter()))
##
##while 1 == 1:
##    printer()

num = int(input('Insert a number: '))
a = [x for x in range(2, num) if num % x == 0]

def is_prime(n):
	if num > 1:
		if len(a) == 0:
			print ('prime')
		else:
			print ('NOT prime')
	else:
		print ('NOT prime')

is_prime(num)