100644 blob a044932cb88326753d6886cbaf6d2820a327096b	BaseRowColShifter.java
100644 blob c6d97f3ff61d7cf3b9be62ee365271139f1c1ec0	ColumnShifter.java
100644 blob 2c4b3fa507d1f351049c070be4ecf22218bb136f	RowShifter.java