Updated production rules:
rule_4: A2 -> A5 A3 3 2
rule_37: A20 -> A23 A21 15 14
rule_50: A27 -> A29 A28 20 19
rule_68: A36 -> A40 11 A37 17 12 18 25 24
rule_78: A43 -> A32 22 A44 23 27