cool. Simply. Python

#!/usr/bin/env python3

# -*- coding: utf-8 -*-

"""
Spyder Editor

Este programa es 'cool'.
"""

a = [1, 2, 3, 4, 5, 6, 7, 6, 5, 4, 3, 2, 1]
b = [' ' * 2 * (7 - i) + '<00>' * i for i in a]

for line in b:
    print(line)