2db2n 3db2nm 4db2 5db2n 6db2nm

r4b2nm s4b2 t4b2n u4b2nm v4b2

gvc2 hvc2n ivc2nm jvc2 kvc2n

5ld2n 6ld2nm 7ld2 8ld2n 9ld2nm

uce2nm vce2 wce2n xce2nm yce2