040000 tree 125ab3b76f3ed3c80689f1bc842c130872dc36cf	counted.iterator
040000 tree 487acc5202fc5dac5c6f5e9b21d0cb57fcbdd6da	default.sentinel
040000 tree 086cf55126766b5a42fe768bff1df84ea17e0b6f	insert.iterators
040000 tree cc7e555940aa792846b65bbf4a367c44820ae163	iterators.common
040000 tree db3d821ab2561b9633d9b99d8a80e4a4966ee4f8	move.iterators
040000 tree 8d8c4225156e73b6f9e1e8255de2d4b681447eee	reverse.iterators
040000 tree be3062eca660b577918a47a9d1622155fc67edb3	unreachable.sentinel