-ic a-a a-b a-c a-i aaa aab aac aah aai aao aap aar aay ab- aba abb abc abh abi abo abp abr aby ac- aca acb acc ach aci aco acp acr acy aha ahb ahc ahh ahi aho ahp ahr ahy ai- aia aib aic aih aii aio aip air aiy aoa aob aoc aoh aoi aoo aop aor ap- apa apb apc aph api apo app apr apy ar- ara arb arc arh ari aro arp arr ary ay- aya ayc ayh ayi ayo ayp ayr b-p baa bab bac bah bai bao bap bar bay bba bbb bbc bbh bbi bbo bbp bbr bby bca bcb bcc bch bci bco bcp bcr bcy bha bhb bhc bhh bhi bho bhp bhr bi- bia bib bic bih bii bio bip bir biy boa bob boc boh boi boo bop bor boy bpa bpb bpc bph bpi bpo bpp bpr bpy bra brb brh bri bro brp brr bry by- bya byc byh byi byo byp byr c-- caa cab cac cah cai cao cap car cay cba cbb cbc cbh cbi cbo cbp cbr cby cca ccb ccc cch cci cco ccp ccr ch- cha chb chc chh chi cho chp chr chy ci- cia cib cic cih cii cio cip cir co- coa cob coc coh coi coo cop cor coy cpa cpb cpc cph cpi cpo cpp cpr cra crb crc crh cri cro crp crr cry cya cyb cyc cyo cyp cyr h-i haa hab hac hah hai hao hap har hay hba hbb hbc hbh hbi hbo hbp hbr hby hca hcb hcc hch hci hco hcp hcr hcy hha hhb hhc hhh hhi hho hhp hhr hhy hia hib hic hih hii hio hip hir hoa hob hoc hoh hoi hoo hop hor hoy hpa hpb hpc hph hpi hpo hpp hpr hpy hr- hra hrb hrc hrh hri hro hrp hrr hy- hya hyb hyc hyh hyi hyo hyp hyr hyy ia- iaa iab iac iah iai iao iap iar iba ibb ibc ibh ibi ibo ibp ibr iby ica icb icc ich ici ico icp icr icy iha ihb ihc ihh ihi iho ihp ihr ihy iia iib iic iih iii iio iip iir io- ioa iob ioc ioh ioi ioo iop ior ipa ipb ipc ipi ipo ipp ipr ipy ir- ira irb irc iri iro irp irr iry iya iyc iyo iyr iyy o-i oaa oab oac oah oai oao oap oar ob- oba obb obc obh obi obo obp obr oby oc- oca ocb occ och oci oco ocp ocr oha ohc ohh ohi oho ohp ohr oia oib oic oii oio oip oir oo- ooa oob ooc ooh ooi ooo oop oor op- opa opb opc oph opi opo opp opr opy or- ora orb orc orh ori oro orp orr ory oya oyi oyo p-p paa pab pac pah pai pao pap par pay pba pbb pbc pbi pbo pbp pbr pby pca pcb pcc pch pci pco pcp pcr pha phb phc phi pho php phr phy pia pib pic pih pii pio pip pir poa pob poc poh poi poo pop por poy ppa ppb ppc pph ppi ppo ppp ppr pra prb prc prh pri pro prp prr pry py- pya pyb pyc pyo pyr ra- raa rab rac rah rai rao rap rar ray rba rbb rbc rbh rbi rbo rbp rbr rca rcb rcc rch rci rco rcp rcr rh- rha rhb rhc rhh rhi rho rhp rhr ria rib ric rih rii rio rip rir riy roa rob roc roh roi roo rop ror roy rpa rpb rpc rph rpi rpo rpp rpr rra rrb rrc rrh rri rrp rrr ry- rya ryc ryo ryr ryy yaa yab yac yah yai yao yap yar yay ybc ybi ybp ybr yby yca ycc ych yci yco ycp ycy yha yhc yhi yih yii yio yip yir yob yoc yoi yoo yop yor yoy ypa ypo yra yrc yro yrp yyb yyc yyy