e--5-5-3-3--------------------------------------} b---------6-6-4-5-4-7~~-6p5---------------------} g--------------------------7--------------------} e--5-5-3-3--------------------------------------} b----------6-6-4-5-4-4-7777---------------------} g----------------------------5p7--5~~-----------} e--5-5-3-3--------------------------------------} b---------6-6-4-5-4-7~~-6p5---------------------} g--------------------------7--------------------} e--5-5-3-3---------------------2345p4-5~~-------} b----------6-6-4-5-4-------3456-----------------} g--------------------5--567---------------------}