-----------------1-------------0----------------0-1-----| |-------1------------------0--------0-1--3------------1---3---------| |-----0----------------0-2--------2-----------------0-----------0-0-| |-2-3-------0-2-3------------------------------2-3------------------| --------------------------------------------------------| --------------------------------------------------------| | |-0------0------0------0--------------------------------------------| |---3------3------3------3------------------------------------------| |------0------0------0----------------------------------------------| ---------------------------------2----------------------| --------------------------------------------------------| ----------------0--3-1----1--0-3-------0--3-1----1--0-3-| | --------1-------1-------1----------------------------3--| --------------------------4-4-4-------4-------4--4-2-3--| ----------3-3-3---3-3-3---------1-1-1---1-1-1--------0--| ---2-------------------------------------------------0--| -----------------------------------------------------X--| |-1----1-1-0-3---1-3---------------------------------------------0--|