text: '''
  lab 8 functions
  '''
  
  #3.1 
  def count_words(input_str):
      return len(input_str.split())
      
  #3.2 
  demo_str = "hi, hello world!"
  
  print(count_words(demo_str))
  
  #3.3
  
  def find_min_num(input_list):
      
      min_item = input_list[0]
      
      for num in input_list:
          if type(num) is not str:
              
              if min_item>= num: 
                  min_item= num
              return min_item
  
  #3.4 
  
  demo_list = [1, 2, 3, 4, 5, 6]
  
  print(find_min_num(demo_list))
  
  
  
  #3.5 
  mix_list = [1, 2, 3, "a", 4, 5, 6]
  print(find_min_num(mix_list))
  