print (currentPlayer + "'s turn")
print("Column?")
co = int(input())
print("Row?")
ro = int(input())
current = get_state(grid,ro,co)
if current != 'x':
    print ("That spot is taken!")
else:
    set_state(grid, ro, co, currentPlayer)
if is_winner(grid):
    print (currentPlayer + "'s wins!")
    ongoing = False
else:
    if currentPlayer == 'X':
        currentPlayer = 'O'
    elif currentPlayer == 'O':
        curentPlayer = 'Y'
    elif currentPlayer == 'Y':
        currentPlayer = 'X'