|-----------------------|
|-----------------------|
|-----------------------|
|-----------------0-----| x2
|-----------1/2---------|
|--0-h3-p0--------------|
|-----------------------|--------------------------
|-----------------------|--------------------------
|-----------------------|--------------------------
|-----------------0-----|---------------------2----
|-----------1/2---------|--2-p0--------------------
|--0-h3-p0--------------|--------3-0-0-3-0-3-------
|-----------------------|--------------------------
|-----------------------|--------------------------
|-----------------------|--------------------------
|-----------------0-----|---------------2----------
|-----------1/2---------|--2-p0--------------------
|--0-h3-p0--------------|--------3-0-0-------------