-ic b-u bbb bbc bbd bbi bbn bbo bbr bbt bbu bcb bcc bcd bci bcn bco bcr bct bcu bdb bdc bdd bdi bdo bdr bdt bdu bi- bib bic bid bii bin bio bir bit biu bnb bnc bnd bni bnn bno bnr bnt bnu bob boc bod boi bon boo bor bot bou brb brd bri brn bro brr brt bru btb btc btd bti btn bto btr btt btu bub buc bud bui bun buo bur but buu c-- cbb cbc cbd cbi cbn cbo cbr cbt cbu ccb ccc ccd cci ccn cco ccr cct ccu cdb cdc cdd cdi cdn cdo cdr cdt cdu ci- cib cic cid cii cin cio cir cit ciu cn- cnb cnc cnd cni cnn cno cnr cnt cnu co- cob coc cod coi con coo cor cot cou crb crc crd cri crn cro crr crt cru ctb ctc ctd cti ctn cto ctr ctt ctu cub cuc cud cui cun cuo cur cut cuu dbb dbc dbd dbi dbn dbo dbr dbt dbu dcb dcc dcd dci dcn dco dcr dct dcu ddb ddc ddd ddi ddn ddo ddr ddt ddu di- dib dic did dii din dio dir dit diu dnb dnc dnd dni dnn dno dnr dnt dob doc dod doi don doo dor dot dou drb drc drd dri drn dro drr drt dru dtb dtc dtd dti dtn dto dtr dtt dtu dub duc dud dui dun duo dur dut i-d ibb ibc ibd ibi ibn ibo ibr ibt ibu icb icc icd ici icn ico icr ict icu idb idc idd idi idn ido idr idt idu iib iic iid iii iin iio iir iit iiu in- inb inc ind ini inn ino inr int inu io- iob ioc iod ioi ion ioo ior iot iou ir- irb irc ird iri irn iro irr irt iru itb itc itd iti itn ito itt itu iu- iub iuc iud iui iur iut n-i nbb nbc nbd nbi nbn nbo nbr nbt nbu ncb ncc ncd nci ncn nco ncr nct ncu ndb ndc ndd ndi ndn ndo ndr ndt ndu nib nic nid nii nin nio nir nit niu nnb nnc nni nnn nno nnt nnu no- nob noc nod noi non noo nor not nou nrb nrc nrd nri nrn nro nrr nrt nru ntb ntc ntd nti ntn nto ntr ntt ntu nub nuc nud nui nun nuo nur nut nuu o-i ob- obb obc obd obi obn obo obr obt obu oc- ocb occ ocd oci ocn oco ocr oct ocu odb odc odd odi odn odo odr odt odu oib oic oid oii oin oio oir oit oiu on- onb onc ond oni onn ono onr ont onu oo- oob ooc ood ooi oon ooo oor oot or- orb orc ord ori orn oro orr ort oru ot- otb otc otd oti otn oto otr ott otu ou- ouc oud oui oun ouo our out rbb rbc rbd rbi rbn rbo rbr rbt rbu rcb rcc rcd rci rcn rco rcr rct rcu rdb rdc rdd rdi rdn rdo rdr rdt rdu rib ric rid rii rin rio rir rit rnb rnc rnd rni rnn rno rnr rnt rnu rob roc rod roi ron roo ror rot rou rrb rrc rrd rri rrn rrr rrt rru rtb rtc rtd rti rtn rto rtr rtt rtu rub ruc rud rui run ruo rur rut ruu tbb tbc tbd tbi tbn tbo tbr tbt tbu tcb tcc tcd tci tcn tco tcr tct tcu tdb tdc tdd tdi tdn tdo tdr tdt tdu tib tic tid tii tin tio tir tit tiu tnb tnc tnd tni tnn tno tnr tnt to- tob toc tod toi ton too tor tot tou trb trc trd tri trn tro trr trt tru ttb ttc ttd tti ttn tto ttr ttt ttu tub tuc tud tui tun tuo tur tut tuu ubb ubc ubi ubn ubo ubr ubt ubu ucb ucc ucd uci ucn uco ucr uct ucu udb udc udd udi udn udo udr udt udu uib uic uid uii uin uio uir uit uiu un- unb unc und uni unn uno unr unt unu uob uoc uod uon uoo uor uot ur- urb urc urd uri urn uro urr urt uru utb utc utd uti utn uto utr utt utu uuc uun uur uut uuu