Updated production rules:
rule_5: A2 -> A7 A6 4 3
rule_27: A15 -> 2 1 18 17 7 1 16 11 10 1 8 9
rule_42: A23 -> 5 1 12 13 20 1 22 21 23 24 19
rule_65: A33 -> 27 1 28 1 29
rule_74: A39 -> A7 1 14 15