-ic -th a-a a-b a-c a-i a-t aaa aab aac aah aai aao aap aat aax ab- aba abb abc abh abi abo abp abt abx ac- aca acb acc ach aci aco acp act acx aha ahb ahc ahh ahi aho ahp aht ahx ai- aia aib aic aih aii aio aip ait aix aoa aob aoc aoh aoi aoo aop aot aox ap- apa apb apc aph api apo app apt apx at- ata atb atc ath ati ato atp att atx ax- axa axh axi axo axp axt axx b-p baa bab bac bah bai bao bap bat bax bba bbb bbc bbh bbi bbo bbp bbt bbx bca bcb bcc bch bci bco bcp bct bcx bha bhb bhc bhh bhi bho bhp bht bhx bi- bia bib bic bih bii bio bip bit bix boa bob boc boh boi boo bop bot box bpa bpb bpc bph bpi bpo bpp bpt bpx bta btb btc bth bti bto btp btt btx bxb bxi bxo bxx c-- caa cab cac cah cai cao cap cat cax cba cbb cbc cbh cbi cbo cbp cbt cbx cca ccb ccc cch cci cco ccp cct ccx ch- cha chb chc chh chi cho chp cht chx ci- cia cib cic cih cii cio cip cit cix co- coa cob coc coh coi coo cop cot cox cpa cpb cpc cph cpi cpo cpp cpt cpx cta ctb ctc cth cti cto ctp ctt ctx cxc cxh cxi cxo cxp cxt cxx h-i haa hab hac hah hai hao hap hat hax hba hbb hbc hbh hbi hbo hbp hbt hbx hca hcb hcc hch hci hco hcp hct hha hhb hhc hhh hhi hho hhp hht hia hib hic hih hii hio hip hit hix hoa hob hoc hoh hoi hoo hop hot hox hpa hpb hpc hph hpi hpo hpp hpt hta htb htc hth hti hto htp htt htx hxc ia- iaa iab iac iah iai iao iap iat iba ibb ibc ibh ibi ibo ibp ibt ibx ica icb icc ich ici ico icp ict iha ihb ihc ihh ihi iho ihp iht iia iib iic iih iii iio iip iit iix io- ioa iob ioc ioh ioi ioo iop iot ipa ipb ipc ipi ipo ipp ipt ipx ita itb itc ith iti ito itp itt itx ixc ixi o-i oaa oab oac oah oai oao oap oat oax ob- oba obb obc obh obi obo obp obt obx oc- oca ocb occ och oci oco ocp oct ocx oha ohc ohh ohi oho ohp oht oia oib oic oii oio oip oit oo- ooa oob ooc ooh ooi ooo oop oot oox op- opa opb opc oph opi opo opp opt opx ot- ota otb otc oth oti oto otp ott ox- oxa oxb oxc oxi oxo oxt oxx p-p paa pab pac pah pai pao pap pat pax pba pbb pbc pbi pbo pbp pbt pbx pca pcb pcc pch pci pco pcp pct pcx pha phb phc phi pho php pht phx pia pib pic pih pii pio pip pit pix poa pob poc poh poi poo pop pot pox ppa ppb ppc pph ppi ppo ppp ppt ppx pt- pta ptb ptc pth pti pto ptp ptt ptx pxc pxt t-x taa tab tac tah tai tao tap tat tax tba tbb tbc tbh tbi tbo tbp tbt tca tcb tcc tch tci tco tcp tct tcx th- tha thb thc thh thi tho thp tht thx tia tib tic tih tii tio tip tit tix to- toa tob toc toh toi too top tot tox tpa tpb tpc tph tpi tpo tpp tpt tpx tta ttb ttc tth tti tto ttp ttt ttx txi txt xaa xac xap xat xbc xbx xcb xch xci xcp xcx xhp xht xia xic xii xio xit xix xoa xoc xoi xoo xop xot xox xpa xpb xpc xpo xpp xpt xtc xti xtp xtx xxi xxo xxp xxx