text: class Student:
      def __init__(self,name,laptop):
          self.name = name
          self.laptop = laptop
          self.height = 0
          self.sex = ''
      def __str__(self):
          return f'name:{self.name} laptop:{self.laptop} ' \
                 f'height:{self.height} ' \
                 f'sex:{self.sex}'
  emir = Student('Emir','Lenovo')
  emir.height = 170
  emir.sex = 'male'
  aijan = Student('Aijan','HP')
  aijan.height = 170
  aijan.sex = 'female'
  print(emir,aijan)