O L1 L1 R1 R2 L2 X S S R1 R2 R1 R2 T L2 R1 L2 0 L2 R2 R1 X L1 R2 S L2 R1 X R1 R1
T = Triangle, S = Square, O = Circle
X O X X O X X X X X X X X X T T X X S X X X X S X S S S S X