-----------------------------------------| -----------------------------------------| -----------------------------------------| x4 -------1---------1-------1----------1----| ----3----3--2-2-------1-----1--2-2-------| -----------------------------------------| ----------------------------------------------| ----------------------------------------------| -----------3-2-3-2-3--------------------------| x2 ------4-5-------------------4-5---3-2-3-2-3---| ---3---------------------3--------------------| ----------------------------------------------|