-ic b-p bbb bbc bbe bbh bbi bbn bbo bbp bbx bcb bcc bce bch bci bcn bco bcp bcx be- beb bec bee beh bei ben beo bep bex bhb bhc bhe bhh bhi bho bhp bhx bi- bib bic bie bih bii bin bio bip bix bnb bnc bne bni bnn bno bnp bnx bob boc boe boh boi bon boo bop box bpb bpc bpe bph bpi bpn bpo bpp bpx bxb bxi bxn bxo bxx c-- cbb cbc cbe cbh cbi cbn cbo cbp cbx ccb ccc cce cch cci ccn cco ccp ccx ce- ceb cec cee ceh cei cen ceo cep cex ch- chb chc che chh chi chn cho chp chx ci- cib cic cie cih cii cin cio cip cix cn- cnb cnc cne cnh cni cnn cno cnp cnx co- cob coc coe coh coi con coo cop cox cpb cpc cpe cph cpi cpn cpo cpp cpx cxc cxh cxi cxo cxp cxx ebb ebc ebe ebh ebi ebn ebo ebp ebx ec- ecb ecc ece ech eci ecn eco ecx eeb eec eee een eeo eep eex ehb ehc ehe ehh ehi ehn eho ehp eib eic eie eii ein eio eip eix en- enb enc ene enh eni enn eno enp eo- eob eoc eoe eoh eoi eon eoo eop ep- epb epc epe eph epi epn epo epp epx ex- exc exe exh exi exo exp exx h-i hbb hbc hbe hbh hbi hbn hbo hbp hbx hcb hcc hce hch hci hcn hco hcp he- heb hec hee heh hei hen heo hep hex hhb hhc hhe hhh hhi hhn hho hhp hib hic hie hih hii hin hio hip hix hnb hnc hne hnh hnn hno hob hoc hoe hoh hoi hon hoo hop hox hpb hpc hpe hph hpi hpn hpo hpp hxc ibb ibc ibe ibh ibi ibn ibo ibp ibx icb icc ice ich ici icn ico icp ie- iec iee iei ien iep iex ihb ihc ihe ihh ihi ihn iho ihp iib iic iie iih iii iin iio iip iix in- inb inc ine inh ini inn ino inp inx io- iob ioc ioe ioh ioi ion ioo iop ipb ipc ipe ipi ipn ipo ipp ipx ixc ixe ixi ixn n-i nbb nbc nbe nbi nbn nbo nbp nbx ncb ncc nce nch nci ncn nco ncp ncx ne- neb nec nee neh nei nen neo nep nex nhb nhc nhe nhh nhi nhn nhp nib nic nie nih nii nin nio nip nix nnb nnc nne nnh nni nnn nno nnp no- nob noc noe noh noi non noo nop nox npb npc npe nph npi npn npo npp nxc o-i ob- obb obc obe obh obi obn obo obp obx oc- ocb occ och oci ocn oco ocp ocx oeb oec oee oeh oei oen oeo oep oex ohc ohe ohh ohi ohn oho ohp oib oic oie oii oin oio oip on- onb onc one onh oni onn ono onp onx oo- oob ooc ooh ooi oon ooo oop oox op- opb opc ope oph opi opn opo opp opx ox- oxb oxc oxi oxn oxo oxx p-p pbb pbc pbe pbi pbn pbo pbp pbx pcb pcc pce pch pci pcn pco pcp pcx peb pec pee peh pei pen peo pep pex phb phc phe phi phn pho php phx pib pic pie pih pii pin pio pip pix pn- pnb pnc pne pnh pni pnn pno pnp pnx pob poc poe poh poi pon poo pop pox ppb ppc ppe pph ppi ppn ppo ppp ppx pxc pxe xbc xbe xbx xcb xch xci xcp xcx xee xen xep xex xhp xic xie xii xin xio xix xnc xno xoc xoi xon xoo xop xox xpb xpc xpe xpn xpo xpp xxi xxo xxp xxx