Updated production rules:
rule_4: A2 -> A7 7 8 5 A6 4 3
rule_29: A18 -> 1 10 9 1
rule_41: A24 -> 16 1 15 1 18 17 6 1 12 1 11 14 13 1
rule_65: A34 -> A37 2 A35 20 19