text: #cmp,insert,slice os list
  list1=[4,5,6] 
  list2 = [1,2,3] 
  
  print cmp(list1, list2)
  print cmp(list2, list1)
  print len(list1)
  print max(list1)
  print max(list2)
  print min(list1)
  print min(list2)
  print list1.append(7)
  print list1.extend(list2)
  