-ic b-u bbb bbc bbd bbi bbn bbo bbt bbu bcb bcc bcd bci bcn bco bct bcu bdb bdc bdd bdi bdo bdt bdu bi- bib bic bid bii bin bio bit biu bnb bnc bnd bni bnn bno bnt bnu bob boc bod boi bon boo bot bou btb btc btd bti btn bto btt btu bub buc bud bui bun buo but buu c-- cbb cbc cbd cbi cbn cbo cbt cbu ccb ccc ccd cci ccn cco cct ccu cdb cdc cdd cdi cdn cdo cdt cdu ci- cib cic cid cii cin cio cit ciu cn- cnb cnc cnd cni cnn cno cnt cnu co- cob coc cod coi con coo cot cou ctb ctc ctd cti ctn cto ctt ctu cub cuc cud cui cun cuo cut cuu dbb dbc dbd dbi dbn dbo dbt dbu dcb dcc dcd dci dcn dco dct dcu ddb ddc ddd ddi ddn ddo ddt ddu di- dib dic did dii din dio dit diu dnb dnc dnd dni dnn dno dnt dob doc dod doi don doo dot dou dtb dtc dtd dti dtn dto dtt dtu dub duc dud dui dun duo dut i-d ibb ibc ibd ibi ibn ibo ibt ibu icb icc icd ici icn ico ict icu idb idc idd idi idn ido idt idu iib iic iid iii iin iio iit iiu in- inb inc ind ini inn ino int inu io- iob ioc iod ioi ion ioo iot iou itb itc itd iti itn ito itt itu iu- iub iuc iud iui iut n-i nbb nbc nbd nbi nbn nbo nbt nbu ncb ncc ncd nci ncn nco nct ncu ndb ndc ndd ndi ndn ndo ndt ndu nib nic nid nii nin nio nit niu nnb nnc nni nnn nno nnt nnu no- nob noc nod noi non noo not nou ntb ntc ntd nti ntn nto ntt ntu nub nuc nud nui nun nuo nut nuu o-i ob- obb obc obd obi obn obo obt obu oc- ocb occ ocd oci ocn oco oct ocu odb odc odd odi odn odo odt odu oib oic oid oii oin oio oit oiu on- onb onc ond oni onn ono ont onu oo- oob ooc ood ooi oon ooo oot ot- otb otc otd oti otn oto ott otu ou- ouc oud oui oun ouo out tbb tbc tbd tbi tbn tbo tbt tbu tcb tcc tcd tci tcn tco tct tcu tdb tdc tdd tdi tdn tdo tdt tdu tib tic tid tii tin tio tit tiu tnb tnc tnd tni tnn tno tnt to- tob toc tod toi ton too tot tou ttb ttc ttd tti ttn tto ttt ttu tub tuc tud tui tun tuo tut tuu ubb ubc ubi ubn ubo ubt ubu ucb ucc ucd uci ucn uco uct ucu udb udc udd udi udn udo udt udu uib uic uid uii uin uio uit uiu un- unb unc und uni unn uno unt unu uob uoc uod uon uoo uot utb utc utd uti utn uto utt utu uuc uun uut uuu