an2n bn2n0 cn2n02 dn2n en2n0

zd3n0 0d3n02 1d3n 2d3n0 3d3n02

o43n02 p43n q43n0 r43n02 s43n

dv4n ev4n0 fv4n02 gv4n hv4n0

2l5n0 3l5n02 4l5n 5l5n0 6l5n02