Updated production rules:
rule_66: A35 -> 2 1
rule_21: A11 -> A12 7 8
rule_56: A31 -> A19 16 A32 15
rule_33: A18 -> A8 A21 10 9
rule_41: A24 -> 6 1
rule_5: A2 -> A10 A6 5 1 4 3