-ic -up b-p b-u bbb bbc bbi bbo bbp bbr bbs bbu bcb bcc bci bco bcp bcr bcs bcu bi- bib bic bii bio bip bir bis biu bob boc boi boo bop bor bos bou bpb bpc bpi bpo bpp bpr bps bpu brb bri bro brp brr brs bru bsb bsc bsi bso bsp bsr bss bsu bub buc bui buo bup bur bus buu c-- cbb cbc cbi cbo cbp cbr cbs cbu ccb ccc cci cco ccp ccr ccs ccu ci- cib cic cii cio cip cir cis ciu co- cob coc coi coo cop cor cos cou cpb cpc cpi cpo cpp cpr cps cpu crb crc cri cro crp crr crs cru csb csc csi cso csp csr css csu cub cuc cui cuo cup cur cus cuu ibb ibc ibi ibo ibp ibr ibs ibu icb icc ici ico icp icr ics icu iib iic iii iio iip iir iis iiu io- iob ioc ioi ioo iop ior ios iou ipb ipc ipi ipo ipp ipr ips ipu ir- irb irc iri iro irp irr irs iru is- isb isc isi iso isp isr iss isu iu- iub iuc iui iup iur ius o-i ob- obb obc obi obo obp obr obs obu oc- ocb occ oci oco ocp ocr ocs ocu oib oic oii oio oip oir ois oiu oo- oob ooc ooi ooo oop oor oos op- opb opc opi opo opp opr ops or- orb orc ori oro orp orr ors oru os- osb osc osi oso osp osr oss osu ou- ouc oui ouo oup our ous p-p pbb pbc pbi pbo pbp pbr pbs pbu pcb pcc pci pco pcp pcr pcs pcu pib pic pii pio pip pir pis piu pob poc poi poo pop por pos pou ppb ppc ppi ppo ppp ppr pps ppu prb prc pri pro prp prr prs pru ps- psb psc psi pso psp psr pss psu pub puc pui pup pur pus puu rbb rbc rbi rbo rbp rbr rbs rbu rcb rcc rci rco rcp rcr rcs rcu rib ric rii rio rip rir ris rob roc roi roo rop ror ros rou rpb rpc rpi rpo rpp rpr rps rpu rrb rrc rri rrp rrr rrs rru rsb rsc rsi rso rsp rsr rss rsu rub ruc rui ruo rup rur rus ruu sbb sbc sbi sbo sbp sbr sbs sbu scb scc sci sco scp scr scs scu sib sic sii sio sip sir sis siu sob soc soi soo sop sor sos sou spb spc spi spo spp spr sps spu sr- srb src sri sro srp srr srs ss- ssb ssc ssi sso ssp ssr sss ssu sub suc sui suo sup sur sus suu ubb ubc ubi ubo ubp ubr ubs ubu ucb ucc uci uco ucp ucr ucs ucu uib uic uii uio uip uir uis uiu uob uoc uoo uop uor uos up- upb upc upi upo upp upr ups upu ur- urb urc uri uro urp urr urs uru usb usc usi uso usp usr uss usu uuc uur uus uuu

-ous bbbb bbbs bbci bbpr bbrc bcbc bcbp bcbs bccc bcci bccs bcis bcor bcos bcpp bcps bcrs bcru bcsc bcss bcuc bcup bibb bibi bibo bibs bicc bici bico bics biis bio- bioc bioi bios biou bipp bips bipu birb biri biro birr birs biru bis- bisc biso bisp biss bisu bobb bobi bobo bobs bobu boco bocs bocu boi- boii bois boiu boob booc boop boor boos bopp bops bor- bori boro borr bors boru bosc bosi boso boss bosu boup bour bous bpcp bprc bpsu brcb bric brio bris brob broc broo bror bros brou brrr brrs brsb brsr bruc brup brus bsci bscp bscs bsic bsos bspp bspr bssc bsup bubb bubi bubo bubs bubu bucc buci buco bucs bucu buic buir buis buiu bupc bups bur- burb buri buro burp burr burs buru busc busi buss busu buus c-bo cbbc cbbs cbcc cbcp cbcr cbcs cbcu cbir cbpc cbpp cbsc cbsi cbus ccbc cccb cccc ccci cccp cccs cccu ccic ccii ccip ccir ccis ccob ccoc ccpp ccpr ccps ccrc ccri ccrp ccrs ccsi ccsp ccss ccuc ccup ccus cibc cibi cibo cicc cici cico cicr cics cicu ciii ciis ciob cior cios cipo cipp cips cirb circ ciri ciro cirr cirs cis- cisc cisp cisr ciss ciuc ciup cius cobb cobi cobo cobs cobu coco cocp cocu coip coir cois coob coop coos copi copo copp copr cops cor- corb corc cori coro corp corr cors cosc cosi coso cosp coss coub coup cour cous cpbc cpcs cpcu cpic cpio cpos cpps cpri cprs cpsc cpso cpsr cpsu cpus crbc crbu crcc crcr crib cric crip cris criu crob croc croo crop cror crpc crps crsp crss crub crup crus cscb cscc csci csco cscr cscs csib csio csir csis csob csor csos cspb cspc cspi csps csrc csrs cssr csup csur csus cub- cubb cubi cubs cucc cuci cui- cuir cuis cupo cupp cupr cups curb curi curo curr curs cusb cuso cusp cuss cusu ibcs ibis ibos ibrc ibri ibro ibss ibus icbc icbp icbs iccb iccc icci icco iccp iccr iccs iccu icis icoc icor icos icpc icpo icps icrc icrr icrs icru icsb icsc icsi icsp icsr icss icub icup icus iiii iiio iiis iioi iioo iiop iios iirc iirs iisc iisi iisp iisr iisu iiuc iobi ioci iocp ioii ioio iooi iooo ioos iops iori iors ioso iosu ious ipcc ipcs ipop ipos ippc ippo ippr ipri ipsc ipsi ipso ipsp ipss ipur ipus irbp ircc ircs ircu iri- iric irio irip iris irob iroc irop irpc irps irrc irri irrs irsp irus iscc isci isco iscp iscr iscs iscu isic isis iso- isoc isop isor isos ispc ispr isps isri isrp issc issi isso issp issr isss issu isup isus iucc iuiu iupp iuss obbo obis oboi obor obos obri obro obsr obss obus ocbc occc occi