input: def create_int_list():
      """Design a data structure in Python to store integer values.
      >>> my_list = create_int_list()
      >>> my_list.add_value(5)
      >>> my_list.add_value(3)
      >>> my_list.add_value(8)
      >>> my_list.find_min()
      3
      """
      class IntList:
          def __init__(self):
              self.values = []
          
          def add_value(self, value):
              self.values.append(value)
          
          def find_min(self):
              return min(self.values)
      
      return IntList()
output:     class IntList:
          def __init__(self):
              self.values = []
          
          def add_value(self, value):
              self.values.append(value)
          
          def find_min(self):
              return min(self.values)
      
      return IntList()