-ic -up b-p b-u bbb bbc bbe bbi bbo bbp bbt bbu bcb bcc bce bci bco bcp bct bcu be- beb bec bee bei beo bep bet beu bi- bib bic bie bii bio bip bit biu bob boc boe boi boo bop bot bou bpb bpc bpe bpi bpo bpp bpt bpu btb btc bte bti bto btp btt btu bub buc bue bui buo bup but buu c-- cbb cbc cbe cbi cbo cbp cbt cbu ccb ccc cce cci cco ccp cct ccu ce- ceb cec cee cei ceo cep cet ceu ci- cib cic cie cii cio cip cit ciu co- cob coc coe coi coo cop cot cou cpb cpc cpe cpi cpo cpp cpt cpu ctb ctc cte cti cto ctp ctt ctu cub cuc cue cui cuo cup cut cuu ebb ebc ebe ebi ebo ebp ebt ebu ec- ecb ecc ece eci eco ect ecu eeb eec eee eeo eep eet eib eic eie eii eio eip eit eiu eo- eob eoc eoe eoi eoo eop eot eou ep- epb epc epe epi epo epp ept epu etb etc ete eti eto etp ett etu eu- eub euc eue eui eup eut ibb ibc ibe ibi ibo ibp ibt ibu icb icc ice ici ico icp ict icu ie- iec iee iei iep iet iib iic iie iii iio iip iit iiu io- iob ioc ioe ioi ioo iop iot iou ipb ipc ipe ipi ipo ipp ipt ipu itb itc ite iti ito itp itt itu iu- iub iuc iue iui iup iut o-i ob- obb obc obe obi obo obp obt obu oc- ocb occ oci oco ocp oct ocu oeb oec oee oei oeo oep oet oib oic oie oii oio oip oit oiu oo- oob ooc ooi ooo oop oot op- opb opc ope opi opo opp opt ot- otb otc ote oti oto otp ott otu ou- ouc oue oui ouo oup out p-p pbb pbc pbe pbi pbo pbp pbt pbu pcb pcc pce pci pco pcp pct pcu peb pec pee pei peo pep pet peu pib pic pie pii pio pip pit piu pob poc poe poi poo pop pot pou ppb ppc ppe ppi ppo ppp ppt ppu pt- ptb ptc pte pti pto ptp ptt ptu pub puc pue pui pup put puu tbb tbc tbe tbi tbo tbp tbt tbu tcb tcc tce tci tco tcp tct tcu te- teb tec tee tei teo tep tet teu tib tic tie tii tio tip tit tiu to- tob toc toe toi too top tot tou tpb tpc tpe tpi tpo tpp tpt tpu ttb ttc tte tti tto ttp ttt ttu tub tuc tue tui tuo tup tut tuu ubb ubc ube ubi ubo ubp ubt ubu ucb ucc uce uci uco ucp uct ucu ueb uec uee uei uep uet uib uic uie uii uio uip uit uiu uob uoc uoe uoo uop uot up- upb upc upe upi upo upp upt upu utb utc ute uti uto utp utt utu uuc uue uut uuu