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