-ic -up a-a a-b a-c a-i a-t aaa aab aac aai aao aap aat aau ab- aba abb abc abi abo abp abt abu ac- aca acb acc aci aco acp act acu ai- aia aib aic aii aio aip ait aiu aoa aob aoc aoi aoo aop aot aou ap- apa apb apc api apo app apt apu at- ata atb atc ati ato atp att atu au- aua aub auc aui auo aup aut b-p b-u baa bab bac bai bao bap bat bau bba bbb bbc bbi bbo bbp bbt bbu bca bcb bcc bci bco bcp bct bcu bi- bia bib bic bii bio bip bit biu boa bob boc boi boo bop bot bou bpa bpb bpc bpi bpo bpp bpt bpu bta btb btc bti bto btp btt btu bua bub buc bui buo bup but buu c-- caa cab cac cai cao cap cat cau cba cbb cbc cbi cbo cbp cbt cbu cca ccb ccc cci cco ccp cct ccu ci- cia cib cic cii cio cip cit ciu co- coa cob coc coi coo cop cot cou cpa cpb cpc cpi cpo cpp cpt cpu cta ctb ctc cti cto ctp ctt ctu cua cub cuc cui cuo cup cut cuu ia- iaa iab iac iai iao iap iat iau iba ibb ibc ibi ibo ibp ibt ibu ica icb icc ici ico icp ict icu iia iib iic iii iio iip iit iiu io- ioa iob ioc ioi ioo iop iot iou ipa ipb ipc ipi ipo ipp ipt ipu ita itb itc iti ito itp itt itu iu- iua iub iuc iui iup iut o-i oaa oab oac oai oao oap oat oau ob- oba obb obc obi obo obp obt obu oc- oca ocb occ oci oco ocp oct ocu oia oib oic oii oio oip oit oiu oo- ooa oob ooc ooi ooo oop oot op- opa opb opc opi opo opp opt ot- ota otb otc oti oto otp ott otu ou- oua ouc oui ouo oup out p-p paa pab pac pai pao pap pat pau pba pbb pbc pbi pbo pbp pbt pbu pca pcb pcc pci pco pcp pct pcu pia pib pic pii pio pip pit piu poa pob poc poi poo pop pot pou ppa ppb ppc ppi ppo ppp ppt ppu pt- pta ptb ptc pti pto ptp ptt ptu pua pub puc pui pup put puu taa tab tac tai tao tap tat tau tba tbb tbc tbi tbo tbp tbt tbu tca tcb tcc tci tco tcp tct tcu tia tib tic tii tio tip tit tiu to- toa tob toc toi too top tot tou tpa tpb tpc tpi tpo tpp tpt tpu tta ttb ttc tti tto ttp ttt ttu tua tub tuc tui tuo tup tut tuu ua- uaa uab uac uai uao uap uat uau uba ubb ubc ubi ubo ubp ubt ubu uca ucb ucc uci uco ucp uct ucu uia uib uic uii uio uip uit uiu uoa uob uoc uoo uop uot up- upa upb upc upi upo upp upt upu uta utb utc uti uto utp utt utu uua uuc uut uuu