-ic -up b-p b-u bbb bbc bbi bbn bbo bbp bbu bcb bcc bci bcn bco bcp bcu bi- bib bic bii bin bio bip biu bnb bnc bni bnn bno bnp bnu bob boc boi bon boo bop bou bpb bpc bpi bpn bpo bpp bpu bub buc bui bun buo bup buu c-- cbb cbc cbi cbn cbo cbp cbu ccb ccc cci ccn cco ccp ccu ci- cib cic cii cin cio cip ciu cn- cnb cnc cni cnn cno cnp cnu co- cob coc coi con coo cop cou cpb cpc cpi cpn cpo cpp cpu cub cuc cui cun cuo cup cuu ibb ibc ibi ibn ibo ibp ibu icb icc ici icn ico icp icu iib iic iii iin iio iip iiu in- inb inc ini inn ino inp inu io- iob ioc ioi ion ioo iop iou ipb ipc ipi ipn ipo ipp ipu iu- iub iuc iui iup n-i nbb nbc nbi nbn nbo nbp nbu ncb ncc nci ncn nco ncp ncu nib nic nii nin nio nip niu nnb nnc nni nnn nno nnp nnu no- nob noc noi non noo nop nou npb npc npi npn npo npp npu nub nuc nui nun nuo nup nuu o-i ob- obb obc obi obn obo obp obu oc- ocb occ oci ocn oco ocp ocu oib oic oii oin oio oip oiu on- onb onc oni onn ono onp onu oo- oob ooc ooi oon ooo oop op- opb opc opi opn opo opp ou- ouc oui oun ouo oup p-p pbb pbc pbi pbn pbo pbp pbu pcb pcc pci pcn pco pcp pcu pib pic pii pin pio pip piu pn- pnb pnc pni pnn pno pnp pnu pob poc poi pon poo pop pou ppb ppc ppi ppn ppo ppp ppu pub puc pui pun pup puu ubb ubc ubi ubn ubo ubp ubu ucb ucc uci ucn uco ucp ucu uib uic uii uin uio uip uiu un- unb unc uni unn uno unp unu uob uoc uon uoo uop up- upb upc upi upn upo upp upu uuc uun uuu