# -*- coding: utf-8 -*-
"""
Created on Tue Sep 15 09:25:16 2020

@author: Sim
"""


for i in range(10, 0, -2):
  print(i)
  
for char in 'abcdef':
  print(char)
  
list2d = [ [1, 2, 3], [4, 5, 6], [7, 8, 9]]
for list in list2d:
    for element in list:
        print(element)