lr1rh7 mr1r nr1rh or1rh7 pr1r
ai2r bi2rh ci2rh7 di2r ei2rh
z82rh 082rh7 182r 282rh 382rh7
oz3rh7 pz3r qz3rh rz3rh7 sz3r
dq4r eq4rh fq4rh7 gq4r hq4rh