-ic bbb bbc bbe bbf bbh bbi bbn bbo bcb bcc bce bcf bch bci bcn bco be- beb bec bee bef beh bei ben beo bfb bfc bfe bff bfh bfi bfn bfo bhb bhc bhe bhf bhh bhi bho bi- bib bic bie bif bih bii bin bio bnb bnc bne bnf bni bnn bno bob boc boe bof boh boi bon boo c-- cbb cbc cbe cbf cbh cbi cbn cbo ccb ccc cce ccf cch cci ccn cco ce- ceb cec cee cef ceh cei cen ceo cfb cfc cfe cff cfh cfi cfn cfo ch- chb chc che chf chh chi chn cho ci- cib cic cie cif cih cii cin cio cn- cnb cnc cne cnf cnh cni cnn cno co- cob coc coe cof coh coi con coo ebb ebc ebe ebf ebh ebi ebn ebo ec- ecb ecc ece ecf ech eci ecn eco eeb eec eee eef een eeo ef- efb efc efe eff efh efi efo ehb ehc ehe ehf ehh ehi ehn eho eib eic eie eif eii ein eio en- enb enc ene enf enh eni enn eno eo- eob eoc eoe eof eoh eoi eon eoo fbb fbc fbe fbf fbh fbi fbn fbo fcb fcc fce fcf fci fcn fco feb fec fee fef feh fei fen feo ffc ffe fff ffh ffi ffn ffo fhb fhc fhe fhf fhh fhi fhn fho fib fic fie fif fih fii fin fnb fnc fne fnf fnh fni fnn fob foc foe fof foh foi fon foo h-i hbb hbc hbe hbf hbh hbi hbn hbo hcb hcc hce hcf hch hci hcn hco he- heb hec hee hef heh hei hen heo hfb hfc hfe hff hfh hfi hfn hfo hhb hhc hhe hhf hhh hhi hhn hho hib hic hie hif hih hii hin hio hnb hnc hne hnf hnh hnn hno hob hoc hoe hof hoh hoi hon hoo i-f ibb ibc ibe ibf ibh ibi ibn ibo icb icc ice icf ich ici icn ico ie- iec iee ief iei ien ifb ifc ife iff ifi ifn ifo ihb ihc ihe ihf ihh ihi ihn iho iib iic iie iif iih iii iin iio in- inb inc ine inf inh ini inn ino io- iob ioc ioe iof ioh ioi ion ioo n-i nbb nbc nbe nbf nbi nbn nbo ncb ncc nce ncf nch nci ncn nco ne- neb nec nee nef neh nei nen neo nfb nfc nfe nff nfi nfn nfo nhb nhc nhe nhf nhh nhi nhn nib nic nie nif nih nii nin nio nnb nnc nne nnf nnh nni nnn nno no- nob noc noe nof noh noi non noo o-i ob- obb obc obe obf obh obi obn obo oc- ocb occ ocf och oci ocn oco oeb oec oee oef oeh oei oen oeo of- ofb ofc ofe off ofi ofn ofo ohc ohe ohf ohh ohi ohn oho oib oic oie oif oii oin oio on- onb onc one onf onh oni onn ono oo- oob ooc oof ooh ooi oon ooo