-ic bbb bbc bbi bbm bbn bbo bbt bby bcb bcc bci bcm bcn bco bct bcy bi- bib bic bii bim bin bio bit biy bmb bmc bmi bmm bmn bmo bmt bnb bnc bni bnn bno bnt bob boc boi bom bon boo bot boy btb btc bti btm btn bto btt bty by- byc byi bym byn byo byt c-- cbb cbc cbi cbm cbn cbo cbt cby ccb ccc cci ccm ccn cco cct ci- cib cic cii cim cin cio cit cmb cmc cmi cmm cmn cmo cmt cmy cn- cnb cnc cni cnm cnn cno cnt cny co- cob coc coi com con coo cot coy ctb ctc cti ctm ctn cto ctt cty cyb cyc cym cyn cyo cyt ibb ibc ibi ibm ibn ibo ibt iby icb icc ici icm icn ico ict icy iib iic iii iim iin iio iit im- imb imc imi imm imn imo imt imy in- inb inc ini inm inn ino int iny io- iob ioc ioi iom ion ioo iot itb itc iti itm itn ito itt ity iyc iym iyo iyt iyy m-o mbb mbc mbi mbm mbo mbt mc- mcb mcc mci mcm mcn mco mct mi- mib mic mii mim min mio mit miy mmb mmc mmi mmm mmn mmo mmt mnb mnc mni mnm mnn mno mnt mob moc moi mom mon moo mot moy mtb mtc mti mtm mtn mto mtt my- myb myc mym myn myo myt n-i nbb nbc nbi nbm nbn nbo nbt ncb ncc nci ncm ncn nco nct nib nic nii nim nin nio nit nmb nmc nmi nmm nmn nmo nmt nnb nnc nni nnm nnn nno nnt no- nob noc noi nom non noo not noy ntb ntc nti ntm ntn nto ntt nyc nym nyn nyo nyt nyy o-i ob- obb obc obi obm obn obo obt oby oc- ocb occ oci ocm ocn oco oct oib oic oii oim oin oio oit om- omb omc omi omm omn omo omt omy on- onb onc oni onn ono ont ony oo- oob ooc ooi oom oon ooo oot ot- otb otc oti otm otn oto ott oyi oyo tbb tbc tbi tbm tbn tbo tbt tcb tcc tci tcm tcn tco tct tib tic tii tim tin tio tit tiy tmb tmc tmi tmm tmn tmo tmt tmy tnb tnc tni tnm tnn tno tnt to- tob toc toi tom ton too tot toy ttb ttc tti ttm ttn tto ttt tty tyc tym tyn tyo tyt ybc ybi ybm yby ycc yci yco ycy yii yim yin yio yit ymc ymi ymm ymo ymt ynn yny yob yoc yoi yom yon yoo yot yoy ytc ytm ytn yto ytt yyb yyc yyt yyy