Three vertical columns, labeled 0, 1, and 2, contain blocks.
The operation MOVE(source, destination) removes the single top block from the column specified by source and places it onto the top of the column specified by destination.
The diagram below shows the initial arrangement of the blocks:

Draw or describe the final arrangement of the blocks in each of the three columns after the following sequence of instructions has run:
MOVE(0, 2)
MOVE(0, 1)
MOVE(2, 1)