1x2r 2x2r0 3x2r01 4x2r 5x2r0

qo3r0 ro3r01 so3r to3r0 uo3r01

ff4r01 gf4r hf4r0 if4r01 jf4r

454r 554r0 654r01 754r 854r0

tw5r0 uw5r01 vw5r ww5r0 xw5r01