$ 'main' \-1-[10]{^}o# $ '^' (val, num -- val): \ | /(!b!)m---{m}(b)s1-\ | | | | \ /---/ \-1(!b!)-----{d}0q---< \-a(b)m# $ 'd' \-(!q!)(q)(q)# $ 'm' \-99m9a9a1a#