-ic bbb bbc bbi bbn bbo bbs bbt bcb bcc bci bcn bco bcs bct bi- bib bic bii bin bio bis bit bnb bnc bni bnn bno bns bnt bob boc boi bon boo bos bot bsb bsc bsi bsn bso bss bst btb btc bti btn bto bts btt c-- cbb cbc cbi cbn cbo cbs cbt ccb ccc cci ccn cco ccs cct ci- cib cic cii cin cio cis cit cn- cnb cnc cni cnn cno cns cnt co- cob coc coi con coo cos cot csb csc csi csn cso css cst ctb ctc cti ctn cto cts ctt ibb ibc ibi ibn ibo ibs ibt icb icc ici icn ico ics ict iib iic iii iin iio iis iit in- inb inc ini inn ino ins int io- iob ioc ioi ion ioo ios iot is- isb isc isi isn iso iss ist itb itc iti itn ito its itt n-i nbb nbc nbi nbn nbo nbs nbt ncb ncc nci ncn nco ncs nct nib nic nii nin nio nis nit nnb nnc nni nnn nno nns nnt no- nob noc noi non noo nos not nsb nsc nsi nsn nso nss nst ntb ntc nti ntn nto nts ntt o-i ob- obb obc obi obn obo obs obt oc- ocb occ oci ocn oco ocs oct oib oic oii oin oio ois oit on- onb onc oni onn ono ons ont oo- oob ooc ooi oon ooo oos oot os- osb osc osi osn oso oss ost ot- otb otc oti otn oto ots ott sbb sbc sbi sbn sbo sbs sbt scb scc sci scn sco scs sct sib sic sii sin sio sis sit snb snc sni snn sno sns snt sob soc soi son soo sos sot ss- ssb ssc ssi ssn sso sss sst stb stc sti stn sto sts stt tbb tbc tbi tbn tbo tbs tbt tcb tcc tci tcn tco tcs tct tib tic tii tin tio tis tit tnb tnc tni tnn tno tns tnt to- tob toc toi ton too tos tot tsb tsc tsi tsn tso tss tst ttb ttc tti ttn tto tts ttt

bbbb bbbs bbci bbin bcbc bcbs bccc bcci bccs bcis bcit bcos bcsc bcsn bcss bctc bcts bibb bibi bibo bibs bicc bici bico bics biin biis bin- binc bini binn bino bins bint bio- bioc bioi bion bios biot bis- bisc biso biss bist bitc bito bits bitt bnib bnin bnoc bnss bobb bobi bobo bobs boco bocs boi- boii boin bois boit bonc boni bonn bono bons bont boob booc boon boos boot bosc bosi bosn boso boss bost botb boti botn boto bots bott bsci bscs bsic bsin bsns bson bsos bssc bsts btcc btcs btob btss bttb c-bo cbbc cbbs cbcc cbcn cbcs cbct cbit cbot cbsc cbsi cbsn cbtc ccbc ccbn cccb cccc ccci cccs ccic ccii ccis ccnb ccnc ccni ccns ccob ccoc ccsi ccsn ccss ccst cctb cctc cctt cibc cibi cibo cicc cici cico cics cict ciii ciis ciit cin- cinc cini cino cint ciob cion cios cis- cisc cisn ciss cist citb citi cito cits citt cnbc cnci cnco cnib cnic cnss cntc cobb cobi cobo cobs coco coct coin cois coit con- conc coni conn cono cons cont coob coon coos coot cosc cosi coso coss cost cotb cotc coti cotn coto cots cott cscb cscc csci csco cscs csib csio csis csit csob csos csot cstc csto csts ctbi ctbs ctic ctns ctos ctot ctsc ctsn ctss cttn ctts i-no ibcs ibis ibns ibon ibos ibot ibsn ibss ibtb ibtc ibts icbc icbs iccb iccc icci iccn icco iccs icct icis icnb icnc icns icoc icon icos icsb icsc icsi icss icst icts iiii iiio iiis iiit iino iioi iioo iios iisc iisi iist iitt inbo incb inci inco incs inis init inni inno inns ino- inoi inon inos inot insc inso inss inst inti intn into ints iobi ioci ioii ioio ioit ioni ionn iono ions iooi iooo ioos ioso ioto isbn isbt iscc isci iscn isco iscs isct isic isin isis isit isno isnt iso- isoc ison isos issc issi isso isss istc isti isto ists itbs itcs itic itin itis itno itoi iton itoo itos itsi itso itto n-ii nbbc nbbo nbcc nbci nbco nbcs nbic nbti ncbc ncbi ncbs nccc ncci nccn nccs ncct ncis ncit ncnc ncoc ncos ncsc ncsi ncss ncst nctc nibi nibo nibs nicc nici nico nics niit nini nino nins nion nioo nios nisi niso niss nist nitb nitc niti nito nits nnit nnnn nnos nnot nnss nntn nobc nobi nobo nobs noci noco nocs noct noib noin noio nois noit non- noni nonn nono nons nont noo- noob noon nooo noos noot nos- noss nost not- noti noto nots nott nsbo nscc nscs nsic nsin nsis nsos nssb nssc nsso nsss nstc nsts ntbc ntcc ntis ntsb ntsc ntss ntto obbo obin obis obit oboi obon obos obot obsn obss obst obts ocbc occc occi occn occt ocin ocis ocon ocos oct- octi octo octs oici oiii oins oint oion oios oisc oist oitc oiti onc- onco onct onic onis onit onni onno onon onos onsc onso onst ont- ontc onti onto oobi oons oont oooo ooos oosi oost ootb oots oscc osci osco osii osin osis osno osoi osoo osos ossb ossi osso ostc osti osts otbs otic otin otis otit oto- oton otoo otos otso otti otto otts s-ib s-ic s-ii s-os sbbs sbcc sbcs sbct sbic sbot sbsi sbst sbtc sbtn scbi sccc sccs scct sci- scic scin scio scis scit scnt scob scon scoo scot scsc scsi scsn scso scst sctc sctn scto scts sibc sibi sibo sibs sicc sici sico sics siit sini sinn sino sins sint sion sios siot sisc sisi siss sist sit- sitc siti sitn sito sits sitt sncc snco snib snit snns snob snoc snoo snos snot sobo sobs sobt soci soco socs soic soin sois soit