100644 blob 09c22589e4757d1e9b3a028d58b1d5498da83006	1.cc
100644 blob df3a441450bb2b1616d35a6f03c7bb668ca1600d	2.cc
040000 tree 0266eace4dff691374e52ba12c28de9bb6e70145	erase
040000 tree 62b57d48f32a47d5ec36663ddbf114f24156d88b	insert
040000 tree 93997bf290178dbf3543d8f658d42bb07441c791	swap