-ic -th a-a a-b a-c a-i a-t aaa aab aac aad aah aai aar aat ab- aba abb abc abd abh abi abr abt ac- aca acb acc acd ach aci acr act ad- ada adb adc add adh adi adr adt aha ahb ahc ahd ahh ahi ahr aht ai- aia aib aic aid aih aii air ait ar- ara arb arc ard arh ari arr art at- ata atb atc atd ath ati atr att baa bab bac bad bah bai bar bat bba bbb bbc bbd bbh bbi bbr bbt bca bcb bcc bcd bch bci bcr bct bda bdb bdc bdd bdh bdi bdr bdt bha bhb bhc bhd bhh bhi bhr bht bi- bia bib bic bid bih bii bir bit bra brb brd brh bri brr brt bta btb btc btd bth bti btr btt c-- caa cab cac cad cah cai car cat cba cbb cbc cbd cbh cbi cbr cbt cca ccb ccc ccd cch cci ccr cct cda cdb cdc cdd cdh cdi cdr cdt ch- cha chb chc chd chh chi chr cht ci- cia cib cic cid cih cii cir cit cra crb crc crd crh cri crr crt cta ctb ctc ctd cth cti ctr ctt daa dab dac dad dah dai dar dat dba dbb dbc dbd dbh dbi dbr dbt dca dcb dcc dcd dci dcr dct dda ddb ddc ddd ddh ddi ddr ddt dh- dha dhb dhc dhd dhh dhi dhr dht di- dia dib dic did dih dii dir dit dra drb drc drd dri drr drt dta dtb dtc dtd dth dti dtr dtt h-i haa hab hac had hah hai har hat hba hbb hbc hbd hbh hbi hbr hbt hca hcb hcc hcd hch hci hcr hct hda hdb hdc hdd hdh hdi hdr hdt hha hhb hhc hhd hhh hhi hhr hht hia hib hic hid hih hii hir hit hr- hra hrb hrc hrd hrh hri hrr hrt hta htb htc htd hth hti htr htt i-d ia- iaa iab iac iad iah iai iar iat iba ibb ibc ibd ibh ibi ibr ibt ica icb icc icd ich ici icr ict ida idb idc idd idh idi idr idt iha ihb ihc ihd ihh ihi ihr iht iia iib iic iid iih iii iir iit ir- ira irb irc ird iri irr irt ita itb itc itd ith iti itt ra- raa rab rac rad rah rai rar rat rba rbb rbc rbd rbh rbi rbr rbt rca rcb rcc rcd rch rci rcr rct rda rdb rdc rdd rdh rdi rdr rdt rh- rha rhb rhc rhd rhh rhi rhr rht ria rib ric rid rih rii rir rit rra rrb rrc rrd rrh rri rrr rrt rta rtb rtc rtd rti rtr rtt taa tab tac tad tah tai tar tat tba tbb tbc tbd tbh tbi tbr tbt tca tcb tcc tcd tch tci tcr tct tda tdb tdc tdd tdh tdi tdr tdt th- tha thb thc thd thh thi thr tht tia tib tic tid tih tii tir tit tra trb trc trd trh tri trr trt tta ttb ttc ttd tth tti ttr ttt