|-----------------------------|
|-----7-5-7-7---------7-5-----|
|-5-8-------------5-8-----8-5-|
|-----------------------------|
|---------| \
|---------| \
|-5-5-----| / 4X
|-----3-3-| /
|-------------------------------|
|-------------------------------|
|-1-----1--------3------3-pound-|
|---1-1---1-1------3-3----------|
|---------------------------------|
|---------------------------------|
|-1-pound-------------------------|
|----------3-pound---5-pound------|
|-------------------------------| \
|-------------------------------| \
|---5---5-6-7-7------5---5-6-7--| \
|-6---6------------6---6--------| \
} 2X
|-------------------------------| /
|-------------------------------| /
|---7---7-8-9-9------7---7-8-9--| /
|-8---8------------8---8--------| /
|-------------------------------|
|-0-pound-----------------------|
|-------------------------------|
|-------------------------------|