1|--12-11-12-7-10-8--5--------7-8-7-------8-----------------
2|--------------------------5-------------------------------
3|------------------------5-------------9-------------------
4|----------------------7-------------6----------7----------
5|---------------------7------------7----------7------------
6|-------------------5------------0----------5--------------

1|--12-11-12-7-10-8--5--------7-8-7-------8-----------------
2|--------------------------5-------------------------------
3|------------------------5-------------9-------------------
4|----------------------7-------------6----------7----------
5|---------------------7------------7----------7------------
6|-------------------5------------0----------5--------------