#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Jan 10 14:15:03 2021

@author: gourob
"""

for i in range(10):
    print(i,end=" ")
    
print()
print('===============================')
for i in range(2,15):
    print(i,end=" ")
    
print('===============================')

for i in range(0,21,2):
    print(i,end=" ")
    
print('===============================')

for i in range(5,-1,-1):
    print(i,end=' ')