-ic a-a a-b a-c a-i aaa aab aac aah aai aao aap aar aas aay ab- aba abb abc abh abi abo abp abr abs aby ac- aca acb acc ach aci aco acp acr acs acy aha ahb ahc ahh ahi aho ahp ahr ahs ahy ai- aia aib aic aih aii aio aip air ais aiy aoa aob aoc aoh aoi aoo aop aor aos ap- apa apb apc aph api apo app apr aps apy ar- ara arb arc arh ari aro arp arr ars ary as- asa asb asc ash asi aso asp asr ass asy ay- aya ayc ayh ayi ayo ayp ayr ays b-p baa bab bac bah bai bao bap bar bas bay bba bbb bbc bbh bbi bbo bbp bbr bbs bby bca bcb bcc bch bci bco bcp bcr bcs bcy bha bhb bhc bhh bhi bho bhp bhr bhs bi- bia bib bic bih bii bio bip bir bis biy boa bob boc boh boi boo bop bor bos boy bpa bpb bpc bph bpi bpo bpp bpr bps bpy bra brb brh bri bro brp brr brs bry bsa bsb bsc bsh bsi bso bsp bsr bss bsy by- bya byc byh byi byo byp byr bys c-- caa cab cac cah cai cao cap car cas cay cba cbb cbc cbh cbi cbo cbp cbr cbs cby cca ccb ccc cch cci cco ccp ccr ccs ch- cha chb chc chh chi cho chp chr chs chy ci- cia cib cic cih cii cio cip cir cis co- coa cob coc coh coi coo cop cor cos coy cpa cpb cpc cph cpi cpo cpp cpr cps cra crb crc crh cri cro crp crr crs cry csa csb csc csh csi cso csp csr css csy cya cyb cyc cyo cyp cyr cys h-i haa hab hac hah hai hao hap har has hay hba hbb hbc hbh hbi hbo hbp hbr hbs hby hca hcb hcc hch hci hco hcp hcr hcs hcy hha hhb hhc hhh hhi hho hhp hhr hhs hhy hia hib hic hih hii hio hip hir his hoa hob hoc hoh hoi hoo hop hor hos hoy hpa hpb hpc hph hpi hpo hpp hpr hps hpy hr- hra hrb hrc hrh hri hro hrp hrr hrs hsa hsb hsc hsh hsi hsp hsr hss hsy hy- hya hyb hyc hyh hyi hyo hyp hyr hys hyy ia- iaa iab iac iah iai iao iap iar ias iba ibb ibc ibh ibi ibo ibp ibr ibs iby ica icb icc ich ici ico icp icr ics icy iha ihb ihc ihh ihi iho ihp ihr ihs ihy iia iib iic iih iii iio iip iir iis io- ioa iob ioc ioh ioi ioo iop ior ios ipa ipb ipc ipi ipo ipp ipr ips ipy ir- ira irb irc iri iro irp irr irs iry is- isa isb isc ish isi iso isp isr iss isy iya iyc iyo iyr iys iyy o-i oaa oab oac oah oai oao oap oar oas ob- oba obb obc obh obi obo obp obr obs oby oc- oca ocb occ och oci oco ocp ocr ocs oha ohc ohh ohi oho ohp ohr ohs oia oib oic oii oio oip oir ois oo- ooa oob ooc ooh ooi ooo oop oor oos op- opa opb opc oph opi opo opp opr ops opy or- ora orb orc orh ori oro orp orr ors ory os- osa osb osc osh osi oso osp osr oss oya oyi oyo oys p-p paa pab pac pah pai pao pap par pas pay pba pbb pbc pbi pbo pbp pbr pbs pby pca pcb pcc pch pci pco pcp pcr pcs pha phb phc phi pho php phr phs phy pia pib pic pih pii pio pip pir pis poa pob poc poh poi poo pop por pos poy ppa ppb ppc pph ppi ppo ppp ppr pps pra prb prc prh pri pro prp prr prs pry ps- psa psb psc psh psi pso psp psr pss psy py- pya pyb pyc pyo pyr pys ra- raa rab rac rah rai rao rap rar ras ray rba rbb rbc rbh rbi rbo rbp rbr rbs rca rcb rcc rch rci rco rcp rcr rcs rh- rha rhb rhc rhh rhi rho rhp rhr rhs ria rib ric rih rii rio rip rir ris riy roa rob roc roh roi roo rop ror ros roy rpa rpb rpc rph rpi rpo rpp rpr rps rra rrb rrc rrh rri rrp rrr rrs rsa rsb rsc rsh rsi rso rsp rsr rss ry- rya ryc ryo ryr rys ryy saa sab sac sah sai sao sap sar sas say sba sbb sbc sbh sbi sbo sbp sbr sbs sby sca scb scc sch sci sco scp scr scs sh- sha shb shc shh shi sho shp shr shs shy sia sib sic sih sii sio sip sir sis soa sob soc soh soi soo sop sor sos soy spa spb spc sph spi spo spp spr sps spy sr- sra srb src srh sri sro srp srr srs sry ss- ssa ssb ssc ssh ssi sso ssp ssr sss sy- sya syb syc syh syi syp syr sys yaa yab yac yah yai yao yap yar yas yay ybc ybi ybp ybr ybs yby yca ycc ych yci yco ycp ycs ycy yha yhc yhi yhs yih yii yio yip yir yis yob yoc yoi yoo yop yor yos yoy ypa ypo yps yra yrc yro yrp yrs ysa ysb ysc ysi yso ysp ysr yss ysy yyb yyc yys yyy