The rules that use the category "<digit-not_zero>" are:
<digit-not_zero> hundred
<digit-not_zero> hundred <number>
twenty <digit-not_zero>
battalion <digit-not_zero>
battalion <digit-not_zero> <digit>
battalion <digit-not_zero> <digit> <digit>
battalion <digit-not_zero> <digit> <digit> <digit>
<digit-not_zero> <digit> <digit>