4 1 1 1 2 2 2 3 2 2 1 3 1 1 3 2 3
Load
Save
Show Graph
Controls
Left click
: Place domino horizontally.
Right click
: Place domino vertically.
Middle click
: Delete domino.
Load
: Load the given input (in problem statement format) from the textbox.
Save
: Save the current board to the textbox.