-ic b-u bbb bbc bbd bbi bbn bbo bbu bcb bcc bcd bci bcn bco bcu bdb bdc bdd bdi bdo bdu bi- bib bic bid bii bin bio biu bnb bnc bnd bni bnn bno bnu bob boc bod boi bon boo bou bub buc bud bui bun buo buu c-- cbb cbc cbd cbi cbn cbo cbu ccb ccc ccd cci ccn cco ccu cdb cdc cdd cdi cdn cdo cdu ci- cib cic cid cii cin cio ciu cn- cnb cnc cnd cni cnn cno cnu co- cob coc cod coi con coo cou cub cuc cud cui cun cuo cuu dbb dbc dbd dbi dbn dbo dbu dcb dcc dcd dci dcn dco dcu ddb ddc ddd ddi ddn ddo ddu di- dib dic did dii din dio diu dnb dnc dnd dni dnn dno dob doc dod doi don doo dou dub duc dud dui dun duo i-d ibb ibc ibd ibi ibn ibo ibu icb icc icd ici icn ico icu idb idc idd idi idn ido idu iib iic iid iii iin iio iiu in- inb inc ind ini inn ino inu io- iob ioc iod ioi ion ioo iou iu- iub iuc iud iui n-i nbb nbc nbd nbi nbn nbo nbu ncb ncc ncd nci ncn nco ncu ndb ndc ndd ndi ndn ndo ndu nib nic nid nii nin nio niu nnb nnc nni nnn nno nnu no- nob noc nod noi non noo nou nub nuc nud nui nun nuo nuu o-i ob- obb obc obd obi obn obo obu oc- ocb occ ocd oci ocn oco ocu odb odc odd odi odn odo odu oib oic oid oii oin oio oiu on- onb onc ond oni onn ono onu oo- oob ooc ood ooi oon ooo ou- ouc oud oui oun ouo ubb ubc ubi ubn ubo ubu ucb ucc ucd uci ucn uco ucu udb udc udd udi udn udo udu uib uic uid uii uin uio uiu un- unb unc und uni unn uno unu uob uoc uod uon uoo uuc uun uuu