jx1d kx1d1 lx1d1v mx1d nx1d1
8n2d1 9n2d1v ao2d bo2d1 co2d1v
xe3d1v ye3d ze3d1 0e3d1v 1e3d
m53d n53d1 o53d1v p53d q53d1
bw4d1 cw4d1v dw4d ew4d1 fw4d1v