-ic bbb bbc bbd bbe bbg bbi bbk bbn bbo bbs bbt bcb bcc bcd bce bcg bci bck bcn bco bcs bct bdb bdc bdd bde bdg bdi bdk bdo bds bdt be- beb bec bed bee beg bei bek ben beo bes bet bgb bgc bgd bge bgg bgi bgk bgn bgo bgs bgt bi- bib bic bid bie big bii bik bin bio bis bit bkb bkc bke bkg bkk bkn bko bks bkt bnb bnc bnd bne bng bni bnk bnn bno bns bnt bob boc bod boe bog boi bok bon boo bos bot bsb bsc bsd bse bsg bsi bsk bsn bso bss bst btb btc btd bte btg bti btk btn bto bts btt c-- cbb cbc cbd cbe cbg cbi cbk cbn cbo cbs cbt ccb ccc ccd cce ccg cci cck ccn cco ccs cct cdb cdc cdd cde cdg cdi cdk cdn cdo cds cdt ce- ceb cec ced cee ceg cei cek cen ceo ces cet cgb cgc cgd cge cgg cgi cgn cgo cgs cgt ci- cib cic cid cie cig cii cik cin cio cis cit ckb ckc ckd cki cko cks ckt cn- cnb cnc cnd cne cng cni cnn cno cns cnt co- cob coc cod coe cog coi cok con coo cos cot csb csc csd cse csg csi csk csn cso css cst ctb ctc ctd cte ctg cti ctk ctn cto cts ctt dbb dbc dbd dbe dbg dbi dbk dbn dbo dbs dbt dcb dcc dcd dce dcg dci dck dcn dco dcs dct ddb ddc ddd dde ddg ddi ddk ddn ddo dds ddt de- deb dec ded dee deg dei dek den deo des det dgc dgd dge dgg dgi dgk dgn dgs dgt di- dib dic did die dig dii dik din dio dis dit dkb dkc dke dkg dki dkk dko dks dkt dnb dnc dnd dne dng dni dnk dnn dno dns dnt dob doc dod doe dog doi dok don doo dos dot dsb dsc dsd dse dsg dsi dsk dsn dso dss dst dtb dtc dtd dte dtg dti dtk dtn dto dts dtt ebb ebc ebd ebe ebg ebi ebk ebn ebo ebs ebt ec- ecb ecc ecd ece ecg eci eck ecn eco ecs ect ed- edb edc edd ede edg edi edk edn edo eds edt eeb eec eed eee eeg eek een eeo ees eet egb egc egd ege egg egi egn ego egs egt eib eic eid eie eig eii eik ein eio eis eit ekb ekc ekd eke ekg eki eko eks ekt en- enb enc end ene eng eni enk enn eno ens ent eo- eob eoc eod eoe eog eoi eok eon eoo eos eot es- esb esc esd ese esg esi esk esn eso ess est etb etc etd ete etg eti etk etn eto ets ett g-d gbc gbd gbe gbg gbi gbk gbn gbo gbs gbt gcb gcc gcd gce gcg gci gck gcn gco gcs gct gdb gdc gdd gde gdi gdk gdn gdo gds gdt ge- geb gec ged gee geg gei gek gen geo ges get ggb ggc ggd ggg ggi ggn ggo ggs ggt gib gic gid gie gig gii gik gin gio gis git gkb gkd gkn gko gks gkt gnb gnc gnd gne gni gnn gno gns gnt gob goc god goe gog goi gok gon goo gos got gsb gsc gsd gse gsg gsi gsk gsn gso gss gst gtb gtc gtd gte gtg gti gtk gtn gto gts gtt i-d ibb ibc ibd ibe ibg ibi ibk ibn ibo ibs ibt icb icc icd ice icg ici ick icn ico ics ict idb idc idd ide idg idi idk idn ido ids idt ie- iec ied iee ieg iei iek ien ies iet igb igc igd ige igg igi igk ign igo igs igt iib iic iid iie iii iin iio iis iit ikb ikc ike iki ikk iko iks ikt in- inb inc ind ine ing ini ink inn ino ins int io- iob ioc iod ioe iog ioi ion ioo ios iot is- isb isc isd ise isg isi isk isn iso iss ist itb itc itd ite itg iti itk itn ito its itt k-t kbb kbc kbd kbe kbi kbk kbn kbo kbs kcb kcc kcd kce kcg kci kck kcn kcs kct kdb kdc kde kdg kdk kdo kds kdt ke- keb kec ked kee keg kei kek ken keo kes ket kgb kgc kgd kgi kgo kgs kib kic kid kie kig kii kik kin kio kis kit kkb kkc kke kki kkk kkn kks kkt kn- knc knd kne kng kni knk knn kno knt kob koc kod koe kog koi kok kon koo kos kot ksb ksc ksd kse ksg ksi ksk ksn kso kss kst ktb ktc kte ktg ktk ktn kto kts ktt n-i nbb nbc nbd nbe nbg nbi nbk nbn nbo nbs nbt ncb ncc ncd nce ncg nci nck ncn nco ncs nct ndb ndc ndd nde ndg ndi ndk ndn ndo nds ndt ne- neb nec ned nee neg nei nek nen neo nes net ngb ngc ngd nge ngg ngi ngk ngn ngo ngs ngt nib nic nid nie nig nii nik nin nio nis nit nkc nke nki nkk nkn nko nks nkt nnb nnc nne nng nni nnk nnn nno nns nnt no- nob noc nod noe nog noi nok non noo nos not nsb nsc nsd nse nsg nsi nsk nsn nso nss nst ntb ntc ntd nte ntg nti ntk ntn nto nts ntt o-i ob- obb obc obd obe obg obi obk obn obo obs obt oc- ocb occ ocd ocg oci ock ocn oco ocs oct odb odc odd ode odg odi odn odo ods odt oeb oec oed oee oeg oei oen oeo oes oet ogc ogd oge ogg ogi ogn ogo ogs ogt oib oic oid oie oii oik oin oio ois