PATTERN INDEX
; index    name of the picture
0 0.gif
1 1.gif
2 right.gif
3 rightc.gif
4 left.gif
5 leftc.gif
6 0c.gif
7 lr.gif

PATTERN MATCH
; blank1(cyan blank)  blank2(white blank)  middle  left  right  matches(0 means left, 1 means right)
0 1 2 7 7 0
0 1 3 7 7 0
0 1 4 7 7 1
0 1 5 7 7 1