text: from numpy.random import choice
  from pandas import Series
  
  expSituations = list(range(1, 4))
  
  order = choice(expSituations, size=400, p=(.4, .4, .2))
  
  sequence = Series(order, index=range(1, 401))
  
  sequence.to_csv(path='/home/denis/Downloads/exp.csv')
  