old_contents: from capstone.game import TicTacToe
  from capstone.player import MonteCarlo, RandPlayer
  from capstone.util import play_series
  
  game = TicTacToe()
  players = [MonteCarlo(), RandPlayer()]
  n_matches = 10
  play_series(game, players, n_matches)
  players.reverse()
  play_series(game, players, n_matches)
  
new_contents: from capstone.game import TicTacToe
  from capstone.player import MonteCarlo, RandPlayer
  from capstone.util import play_series
  
  game = TicTacToe()
  players = [MonteCarlo(), RandPlayer()]
  n_matches = 10
  play_series(game, players, n_matches)
  print('')
  players.reverse()
  play_series(game, players, n_matches)
  
subject: Add line break to play series monte carlo