1-------------------------------------------- 2--------------------3-2-----2-1--1-1-------- 3---------2-3----2-3-----2-3----------3------ 4-0-3-4-5-----4-5-----------------------3-5-5 1---------2-0-------------------------------- 2-------------2-----0-1-1-1-1/0-------------- 3---------------0-3-------------3------------ 4-0-3-4-5-------------------------3-5-5------
