Updated production rules:
rule_215: A63 -> 37 36
rule_60: A18 -> 10 9
rule_95: A29 -> 17 16
rule_90: A27 -> 15 14
rule_128: A40 -> 24 23
rule_198: A54 -> 33 32
rule_176: A50 -> 2 28 27
rule_87: A25 -> A19 12 11 A27