3ex2rf 2ex2r 1ex2 0ex2rf zex2r
eow2r dow2 cow2rf bow2r aow2
pxv2 oxv2rf nxv2r mxv2 lxv2rf
06u2rf z6u2r y6u2 x6u2rf w6u2r
bgu2r agu2 9fu2rf 8fu2r 7fu2