1 2 3 4
E E H E
* t C t
  * X -
    * X
      *
handedness 1 2 3 R
handedness 1 3 4 R
handedness 2 3 4 L
sheetS 1 2 4
length 1 E 5 100
length 2 E 5 100
length 3 H 8 100
length 4 E 5 100