lesson_7_ex_1_17_18

# -*- coding: utf-8 -*-
"""
Created on Mon Apr 23 19:05:13 2018

@author: stkarlos
"""

n = int(raw_input('dose arithmo: '))

P = 1
for i in range(1,n+1):
      P = P * i
print P
print 'end for'
print
######
P = 1
i = 1 #proto simeio prosoxis
while i<= n : # i < n+1  trito simeio prosoxis
    
    P = P * i
    i = i + 1 # deytero simeio prosoxis
print P
print 'end while'