a-a a-c aaa aac aad aam aar aas aax ac- aca acc acd acm acr acs acx ad- ada adc add adm adr ads adx ama amc amd amm amr ams amx ar- ara arc ard arm arr ars arx as- asa asc asd asm asr ass asx ax- axa axm axr axs axx c-- caa cac cad cam car cas cax cca ccc ccd ccm ccr ccs ccx cda cdc cdd cdm cdr cds cdx cma cmc cmd cmm cmr cms cmx cra crc crd crm crr crs crx csa csc csd csm csr css csx cxc cxr cxs cxx daa dac dad dam dar das dax dca dcc dcd dcm dcr dcs dcx dda ddc ddd ddm ddr dds ddx dma dmc dmd dmm dmr dms dmx dra drc drd drm drr drs drx dsa dsc dsd dsm dsr dss dsx dxc dxd dxr dxs dxx m-r maa mac mad mam mar mas max mc- mca mcc mcd mcm mcr mcs mcx mda mdc mdd mdm mdr mds mdx mma mmc mmd mmm mmr mms mmx mra mrc mrd mrm mrr mrs mrx msa msc msd msm msr mss msx mxa mxc mxd mxr mxs ra- raa rac rad ram rar ras rax rca rcc rcd rcm rcr rcs rcx rda rdc rdd rdm rdr rds rdx rma rmc rmd rmm rmr rms rmx rra rrc rrd rrm rrr rrs rsa rsc rsd rsm rsr rss rsx rxr rxs saa sac sad sam sar sas sax sca scc scd scm scr scs scx sda sdc sdd sdm sdr sds sma smc smd smm smr sms smx sr- sra src srd srm srr srs srx ss- ssa ssc ssd ssm ssr sss ssx sxc sxm sxs xaa xac xad xam xar xas xcd xcr xcx xda xdc xdm xdr xds xma xmc xmd xmm xmr xms xmx xrc xrd xrx xsa xsc xsm xss xxx