# -*- coding: utf-8 -*-
"""
Created on Sat Jan 18 17:00:52 2020

@author: Aluno
"""

fim = int(input("Digite ultimo numero: "))
x = 0 
while x<= fim:
    if x % 2 == 0:
        print(x)
    x = x + 1
    print("Acabou")
     