"""
This is Lesson 26. Advanced Operations with Lists
Get Programming: Learn to Code with Python
"""
x = "x"
o = "o"
empty = "_"

# Q1
board = [[empty, empty, empty], [x, x, x], [o, o, o]]
print(board)

# Q2
board = [[x, o, x, o], [o, o, x, x], [o, empty, x, x]]
print(board)