|----------------------------------------------------|
|----------------------------------------------------|
|-11-11-11-11-11-12-12-12-12-12-14-14-14-14-14-14-14-|
|-9--9--9--9--9--10-10-10-10-10-12-12-12-12-12-12-12-|
|----------------------------------------------------|
|----------------------------------------------------|


|----------------------------------------------------|
|----------------------------------------------------|
|-11-11-11-11-11-12-12-12-12-12-7-7-7-7-7-7-7--------|
|-9--9--9--9--9--10-10-10-10-10-5-5-5-5-5-5-5--------|
|----------------------------------------------------|
|----------------------------------------------------|


|----------------|             |-----------------------|
|----------------|             |-----------------------|
|----------------|             |-12-12-12--12-12-12-12-|
|-2-2-2--2-2-2-2-|             |-10-10-10--10-10-10-10-|
|-0-0-0--0-0-0-0-|             |-----------------------|
|-0-0-0--0-0-0-0-|like...30x)  |-----------------------|2nd gtr.)
  . . .  . . . .


|-----------------------------------------------|
|-----------------------------------------------|
|-----------------------------------------19-21-|
|-0/14013012011014013012011010--17-0-15-0-------|
|-----------------------------------------------|
|-----------------------------------------------|2x)


|---------------------------1-4-------------------------|
|-----------------------1-4-----4-1---------------------|
|-------------------1-3-------------3-1-----------------|
|-0/14----------1-3---------------------3-1-------------|
|-----------1-3-----------------------------3-2-1-------|
|-------1-4---------------------------------------4-3-0-|


|------------------------1-4-3-0-| 
|--------------------1-3---------| 
|----------------1-4-------------| 
|------------1-4-----------------|
|------1-3-4---------------------| 
|--1-3---------------------------| 

|---------------------1-4-------------------------|
|-----------------1-4-----4-1---------------------|
|-------------1-3-------------3-1-----------------|
|---------1-3---------------------3-1-------------|
|-----1-3-----------------------------3-2-1-------|
|-1-4---------------------------------------4-3-0-|



|-------------------------1-4-|
|---------------------1-4-----|
|-----------------1-3---------|
|-1----1--1-----1-------------|
|-1----1--1-----1-------------|
|-1----1--1-----1-------------|
  .    .  .     .               
|-------------------------------------|
|-------------------------------------|
|-----------------^-^-^-^-^-^-^-^-^-^-|
|-0-1-0-0-0-0-0-0-2-2-2-2-2-2-2-2-2-2-|
|-0-1-0-0-0-0-0-0-2-2-2-2-2-2-2-2-2-2-|
|-0-1-0-0-0-0-0-0-2-2-2-2-2-2-2-2-2-2-|
  .   . . . . . .   


|--------------4-1-----------------------------|
|------------------4-1-------------------------|
|----------------------3-1---------------------|
|-0-0-0-0-1-0--------------3-1-------------0-1-|
|-0-0-0-0-1-0------------------3-2-1-------0-1-|
|-0-0-0-0-1-0------------------------4-3-0-0-1-|
  . . . .   .                              .