after insertion:
t1 (0,2,0) (1,2,0) (2,2,0) (3,2,0) (4,2,0) (5,2,0) (6,2,0) (7,2,0) (8,2,0)
t2 (0,2,1) (1,2,1) (2,2,1) (3,2,1) (4,2,1) (5,2,1) (6,2,1) (7,2,1) (8,2,1)
t2 deleted:
t1 (0,1,2) (1,1,2) (2,1,2) (3,1,2) (4,1,2) (5,1,2) (6,1,2) (7,1,2) (8,1,2)
deleting t1:
deleted 8
deleted 7
deleted 6
deleted 5
deleted 4
deleted 3
deleted 2
deleted 1
deleted 0
