aa1r
ba1r1
ca1r1l
da1r
ea1r1
z01r1
001r1l
101r
201r1
301r1l
or2r1l
pr2r
qr2r1
rr2r1l
sr2r
di3r
ei3r1
fi3r1l
gi3r
hi3r1
283r1
383r1l
483r
583r1
683r1l