text: def main():
      max_value = max_abs_val([-19,-3,20,-1,0,-25])
      print(max_value)
  
  def max_abs_val(lst):
      max_num = abs(lst[0])
      for index in range(len(lst) - 1):
          if(max_num > abs(lst[index + 1])):
              continue
          else:
              max_num = abs(lst[index + 1])
      return max_num
  
  
  main()