Updated production rules:
rule_148: A75 -> 26 1
rule_280: A139 -> 8 1
rule_10: A5 -> 24 1
rule_11: A6 -> 25 1
rule_12: A7 -> 20 1
rule_28: A15 -> 23 1
rule_23: A14 -> 18 1
rule_31: A18 -> 19 1