3R -> A A R-> A+B R R+A-> B A B+A R-> B A A B
LP RP LP RP LP
LP RP LP LP RP
LP RP LP AP
RP LP RP AP
↙↓↘←n→↖↑↗
AK AK AP - LP LP AP
LK RK AP AK
RP RP AP - AK AP ALL - LP RP AK AP - RP LP LK RK
LK LP RP AK ALL
RP LP ALL - AL AK AR AP ALL
RP LP LK ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL.
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