|------------------------------------------------------------------------|
|------------------------------------------------------------------------|
|--------5-------5---------7-------7---------3-------3-------------------|
|------5---5---5---5-----7---7---7---7-----3---3---3---3----------------|]x2
|----3-------3---------5-------5---------1-------1-----------------------|
|------------------------------------------------------------------------|

|------------------------------------------------------------------------|
|------------------------------------------------------------------------|
|--------5---------7---------3-------3-----------------------------------|
|------5---5-----7---7-----3---3---3---3--------------------------------|]x2
|----3---------5---------1-------1---------------------------------------|
|------------------------------------------------------------------------|

|------------------------------------------------------------------------|
|------------------------------------------------------------------------|
|--------5-------7-------3-------3------------5-------7-------3-------3--|
|------5-------7-------3---3---3---3--------5-------7-------3---3---3---3|
|----3-------5-------1-------1------------3-------5-------1-------1------|
|------------------------------------------------------------------------|