-ic a-a a-b a-c a-i aaa aab aac aah aai aao aap aas aay ab- aba abb abc abh abi abo abp abs aby ac- aca acb acc ach aci aco acp acs acy aha ahb ahc ahh ahi aho ahp ahs ahy ai- aia aib aic aih aii aio aip ais aiy aoa aob aoc aoh aoi aoo aop aos ap- apa apb apc aph api apo app aps apy as- asa asb asc ash asi aso asp ass asy ay- aya ayc ayh ayi ayo ayp ays b-p baa bab bac bah bai bao bap bas bay bba bbb bbc bbh bbi bbo bbp bbs bby bca bcb bcc bch bci bco bcp bcs bcy bha bhb bhc bhh bhi bho bhp bhs bi- bia bib bic bih bii bio bip bis biy boa bob boc boh boi boo bop bos boy bpa bpb bpc bph bpi bpo bpp bps bpy bsa bsb bsc bsh bsi bso bsp bss bsy by- bya byc byh byi byo byp bys c-- caa cab cac cah cai cao cap cas cay cba cbb cbc cbh cbi cbo cbp cbs cby cca ccb ccc cch cci cco ccp ccs ch- cha chb chc chh chi cho chp chs chy ci- cia cib cic cih cii cio cip cis co- coa cob coc coh coi coo cop cos coy cpa cpb cpc cph cpi cpo cpp cps csa csb csc csh csi cso csp css csy cya cyb cyc cyo cyp cys h-i haa hab hac hah hai hao hap has hay hba hbb hbc hbh hbi hbo hbp hbs hby hca hcb hcc hch hci hco hcp hcs hcy hha hhb hhc hhh hhi hho hhp hhs hhy hia hib hic hih hii hio hip his hoa hob hoc hoh hoi hoo hop hos hoy hpa hpb hpc hph hpi hpo hpp hps hpy hsa hsb hsc hsh hsi hsp hss hsy hy- hya hyb hyc hyh hyi hyo hyp hys hyy ia- iaa iab iac iah iai iao iap ias iba ibb ibc ibh ibi ibo ibp ibs iby ica icb icc ich ici ico icp ics icy iha ihb ihc ihh ihi iho ihp ihs ihy iia iib iic iih iii iio iip iis io- ioa iob ioc ioh ioi ioo iop ios ipa ipb ipc ipi ipo ipp ips ipy is- isa isb isc ish isi iso isp iss isy iya iyc iyo iys iyy o-i oaa oab oac oah oai oao oap oas ob- oba obb obc obh obi obo obp obs oby oc- oca ocb occ och oci oco ocp ocs oha ohc ohh ohi oho ohp ohs oia oib oic oii oio oip ois oo- ooa oob ooc ooh ooi ooo oop oos op- opa opb opc oph opi opo opp ops opy os- osa osb osc osh osi oso osp oss oya oyi oyo oys p-p paa pab pac pah pai pao pap pas pay pba pbb pbc pbi pbo pbp pbs pby pca pcb pcc pch pci pco pcp pcs pha phb phc phi pho php phs phy pia pib pic pih pii pio pip pis poa pob poc poh poi poo pop pos poy ppa ppb ppc pph ppi ppo ppp pps ps- psa psb psc psh psi pso psp pss psy py- pya pyb pyc pyo pys saa sab sac sah sai sao sap sas say sba sbb sbc sbh sbi sbo sbp sbs sby sca scb scc sch sci sco scp scs sh- sha shb shc shh shi sho shp shs shy sia sib sic sih sii sio sip sis soa sob soc soh soi soo sop sos soy spa spb spc sph spi spo spp sps spy ss- ssa ssb ssc ssh ssi sso ssp sss sy- sya syb syc syh syi syp sys yaa yab yac yah yai yao yap yas yay ybc ybi ybp ybs yby yca ycc ych yci yco ycp ycs ycy yha yhc yhi yhs yih yii yio yip yis yob yoc yoi yoo yop yos yoy ypa ypo yps ysa ysb ysc ysi yso ysp yss ysy yyb yyc yys yyy