-ic b-u bbb bbc bbi bbn bbo bbu bcb bcc bci bcn bco bcu bi- bib bic bii bin bio biu bnb bnc bni bnn bno bnu bob boc boi bon boo bou bub buc bui bun buo buu c-- cbb cbc cbi cbn cbo cbu ccb ccc cci ccn cco ccu ci- cib cic cii cin cio ciu cn- cnb cnc cni cnn cno cnu co- cob coc coi con coo cou cub cuc cui cun cuo cuu ibb ibc ibi ibn ibo ibu icb icc ici icn ico icu iib iic iii iin iio iiu in- inb inc ini inn ino inu io- iob ioc ioi ion ioo iou iu- iub iuc iui n-i nbb nbc nbi nbn nbo nbu ncb ncc nci ncn nco ncu nib nic nii nin nio niu nnb nnc nni nnn nno nnu no- nob noc noi non noo nou nub nuc nui nun nuo nuu o-i ob- obb obc obi obn obo obu oc- ocb occ oci ocn oco ocu oib oic oii oin oio oiu on- onb onc oni onn ono onu oo- oob ooc ooi oon ooo ou- ouc oui oun ouo ubb ubc ubi ubn ubo ubu ucb ucc uci ucn uco ucu uib uic uii uin uio uiu un- unb unc uni unn uno unu uob uoc uon uoo uuc uun uuu