a-a a-b a-i aaa aab aad aai aam aao aap aas ab- aba abb abd abi abm abo abp abs ad- ada adb add adi adm ado adp ads ai- aia aib aid aii aim aio aip ais ama amb amd ami amm amo amp ams aoa aob aod aoi aom aoo aop aos ap- apa apb apd api apm apo app aps as- asa asb asd asi asm aso asp ass b-p baa bab bad bai bam bao bap bas bba bbb bbd bbi bbm bbo bbp bbs bda bdb bdd bdi bdm bdo bdp bds bi- bia bib bid bii bim bio bip bis bma bmb bmd bmi bmm bmo bmp bms boa bob bod boi bom boo bop bos bpa bpb bpd bpi bpm bpo bpp bps bsa bsb bsd bsi bsm bso bsp bss daa dab dad dai dam dao dap das dba dbb dbd dbi dbm dbo dbp dbs dda ddb ddd ddi ddm ddo ddp dds di- dia dib did dii dim dio dip dis dma dmb dmd dmi dmm dmo dmp dms doa dob dod doi dom doo dop dos dpa dpb dpd dpi dpm dpo dpp dps dsa dsb dsd dsi dsm dso dsp dss i-d ia- iaa iab iad iai iam iao iap ias iba ibb ibd ibi ibm ibo ibp ibs ida idb idd idi idm ido idp ids iia iib iid iii iim iio iip iis im- ima imb imd imi imm imo imp ims io- ioa iob iod ioi iom ioo iop ios ipa ipb ipd ipi ipm ipo ipp ips is- isa isb isd isi ism iso isp iss m-o maa mab mad mai mam mao map mas mba mbb mbd mbi mbm mbo mbp mbs mda mdb mdd mdi mdm mdo mdp mds mi- mia mib mid mii mim mio mip mis mma mmb mmd mmi mmm mmo mmp mms moa mob mod moi mom moo mop mos mpa mpb mpd mpi mpm mpo mpp mps msa msb msd msi msm mso msp mss o-i oaa oab oad oai oam oao oap oas ob- oba obb obd obi obm obo obp obs oda odb odd odi odm odo odp ods oia oib oid oii oim oio oip ois om- oma omb omd omi omm omo omp oms oo- ooa oob ood ooi oom ooo oop oos op- opa opb opd opi opm opo opp ops os- osa osb osd osi osm oso osp oss p-p paa pab pad pai pam pao pap pas pba pbb pbd pbi pbm pbo pbp pbs pda pdb pdd pdi pdm pdo pdp pds pia pib pid pii pim pio pip pis pma pmb pmd pmi pmm pmo pmp pms poa pob pod poi pom poo pop pos ppa ppb ppd ppi ppm ppo ppp pps ps- psa psb psd psi psm pso psp pss saa sab sad sai sam sao sap sas sba sbb sbd sbi sbm sbo sbp sbs sda sdb sdd sdi sdm sdo sdp sds sia sib sid sii sim sio sip sis sma smb smd smi smm smo smp sms soa sob sod soi som soo sop sos spa spb spd spi spm spo spp sps ss- ssa ssb ssd ssi ssm sso ssp sss