# g3a.g  grammar for project that includes variables with numbers
#
# G = (V, T, P, S)  V={A1, A2, A3, B3} T={a,b} S=A1
# 
A3 -> bA3A2B3
A3 -> bA3A2
A3 -> aB3
A3 -> a
A2 -> bA3A2B3A1
A2 -> bA3A2A1
A2 -> b
A1 -> bA3A2B3A1A3
A1 -> bA3A2A1A3
A1 -> aB3A1A3
A1 -> aA1A3
A1 -> bA3
B3 -> bA3A2B3A1A3A3A2B3
B3 -> bA3A2B3A1A3A3A2
B3 -> aB3A1A3A3A2B3
B3 -> aB3A1A3A3A2
B3 -> bA3A3A2B3
B3 -> bA3A3A2
B3 -> bA3A2A1A3A3A2B3
B3 -> bA3A2A1A3A3A2
B3 -> aA1A3A3A2B3
B3 -> aA1A3A3A2