#!usr/bin/python3
import math
divisors=None
def perf_num(n,divisors):
	divisors=sum([i for i in range(1,n) if n%i==0])

	if n==divisors:
		print("Num is perfect")
	else:
		print("Num is not perfect")

def main():
	n=int(input(f'Δωσε n:'))
	perf_num(n,divisors)

if __name__=="__main__":
	main()