kcn1z lcn1z2 mcn1 ncn1z ocn1z2

92n1z2 a3n1 b3n1z c3n1z2 d3n1

yto1 zto1z 0to1z2 1to1 2to1z

nkp1z okp1z2 pkp1 qkp1z rkp1z2

cbq1z2 dbq1 ebq1z fbq1z2 gbq1