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