text: a = 1 / 3
  b = a + 2
  
  print(a)
  
  print(type(a))
  
  print(a + a + a)
  s = '1234567890'
  print(type(s))
  
  # выкинуть один символ с конца
  
  print(s[0:-1])
  
  list_of_something = [1, 2, 3, 4, 'abc', ['1', True]]
  print(list_of_something)
  print(list_of_something[0])
  print(list_of_something[5][0])
  print(list_of_something[3:4])
  print(list_of_something[3:-1])
  
  dictionary = {
      'key': 'value',
      'Moscow': 'Москва',
      'l': list_of_something
  }
  
  print(dictionary)
  print(dictionary['Moscow'])
  print(dictionary['l'])
  
  