-ic bbb bbc bbi bbn bbo bbr bbt bby bcb bcc bci bcn bco bcr bct bcy bi- bib bic bii bin bio bir bit biy bnb bnc bni bnn bno bnr bnt bob boc boi bon boo bor bot boy brb bri brn bro brr brt bry btb btc bti btn bto btr btt bty by- byc byi byn byo byr byt c-- cbb cbc cbi cbn cbo cbr cbt cby ccb ccc cci ccn cco ccr cct ci- cib cic cii cin cio cir cit cn- cnb cnc cni cnn cno cnr cnt cny co- cob coc coi con coo cor cot coy crb crc cri crn cro crr crt cry ctb ctc cti ctn cto ctr ctt cty cyb cyc cyn cyo cyr cyt ibb ibc ibi ibn ibo ibr ibt iby icb icc ici icn ico icr ict icy iib iic iii iin iio iir iit in- inb inc ini inn ino inr int iny io- iob ioc ioi ion ioo ior iot ir- irb irc iri irn iro irr irt iry itb itc iti itn ito itt ity iyc iyo iyr iyt iyy n-i nbb nbc nbi nbn nbo nbr nbt ncb ncc nci ncn nco ncr nct nib nic nii nin nio nir nit nnb nnc nni nnn nno nnt no- nob noc noi non noo nor not noy nrb nrc nri nrn nro nrr nrt nry ntb ntc nti ntn nto ntr ntt nyc nyn nyo nyt nyy o-i ob- obb obc obi obn obo obr obt oby oc- ocb occ oci ocn oco ocr oct oib oic oii oin oio oir oit on- onb onc oni onn ono onr ont ony oo- oob ooc ooi oon ooo oor oot or- orb orc ori orn oro orr ort ory ot- otb otc oti otn oto otr ott oyi oyo rbb rbc rbi rbn rbo rbr rbt rcb rcc rci rcn rco rcr rct rib ric rii rin rio rir rit riy rnb rnc rni rnn rno rnr rnt rny rob roc roi ron roo ror rot roy rrb rrc rri rrn rrr rrt rtb rtc rti rtn rto rtr rtt rty ry- ryc ryn ryo ryr ryy tbb tbc tbi tbn tbo tbr tbt tcb tcc tci tcn tco tcr tct tib tic tii tin tio tir tit tiy tnb tnc tni tnn tno tnr tnt to- tob toc toi ton too tor tot toy trb trc tri trn tro trr trt try ttb ttc tti ttn tto ttr ttt tty tyc tyn tyo tyr tyt ybc ybi ybr yby ycc yci yco ycy yii yin yio yir yit ynn yny yob yoc yoi yon yoo yor yot yoy yrc yrn yro yrt ytc ytn yto ytr ytt yyb yyc yyt yyy