17↵ init␣4↵ insert␣1␣L↵ insert␣3␣L↵ insert␣4␣R↵ insert␣2␣R↵ count␣1␣1␣2↵ count␣1␣3␣4↵ last_fall␣0↵ last_fall␣1↵ last_fall␣2↵ last_fall␣3↵ last_fall␣4↵ delete␣2↵ count␣2␣1␣4↵ count␣4␣1␣4↵ last_fall␣2↵ last_fall␣4
1↵ 1↵ -1␣-1↵ 1␣4↵ 1␣4↵ 2␣3↵ 2␣3↵ 1↵ 0↵ 1␣4↵ 3␣4
1500 ms
256 MB
