+-----------+--------------------+--------------------------+
|6:---------|9:------------------|12:-----------------------|
|8:---------|8:------------------| 8:------------------6----|
+---/6--6-6-+---0-00-0-6----3----+----0-00-0-6----3---------+
    e ss e Q    Q         e ss e Q    Q    Q    Q
+--------------------+-------------------------------+
|9:------------------|15:----------------------------|
|8:------------------| 8:------------------6----5----|
+---0-00-0-6----3----+----0-00-0-6----3--------------+
    e ss e Q    Q         e ss e Q    Q    Q        e ss e Q    Q     
+--------------------+--------------------------+--------------------+
|9:------------------|12:-----------------------|9:------------------|
|8:------------------| 8:------------------6----|8:------------------| 
+---0-00-0-6----3----+----0-00-0-6----3---------+---0-00-0-6----3----+
      e ss e Q    Q    Q    Q         Q  q e 2|    ssssssssssssssssssssssss
+-------------------------------+------------+----------------------------+