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