1 2 3 4
H E E E
* T C X
  * X c
    * v
      *
handedness 1 2 3 R
handedness 1 2 4 R
handedness 1 3 4 L
handedness 2 3 4 R
sheetS 2 4
sheetD 3 2
length 1 H 8 100
length 2 E 5 100
length 3 E 5 100
length 4 E 5 100