vb1n wb1n1 xb1n1d yb1n zb1n1

k21n1 l21n1d m21n n21n1 o21n1d

9s2n1d at2n bt2n1 ct2n1d dt2n

yj3n zj3n1 0j3n1d 1j3n 2j3n1

na4n1 oa4n1d pa4n qa4n1 ra4n1d