-up b-p b-u bbb bbd bbe bbf bbi bbo bbp bbs bbu bdb bdd bde bdf bdi bdo bdp bds bdu be- beb bed bee bef bei beo bep bes beu bfb bfd bfe bff bfi bfo bfp bfs bfu bi- bib bid bie bif bii bio bip bis biu bob bod boe bof boi boo bop bos bou bpb bpd bpe bpf bpi bpo bpp bps bpu bsb bsd bse bsf bsi bso bsp bss bsu bub bud bue buf bui buo bup bus buu dbb dbd dbe dbf dbi dbo dbp dbs dbu ddb ddd dde ddf ddi ddo ddp dds ddu de- deb ded dee def dei deo dep des deu dfb dfd dfe dff dfi dfo dfp dfs dfu di- dib did die dif dii dio dip dis diu dob dod doe dof doi doo dop dos dou dpb dpd dpe dpf dpi dpo dpp dps dpu dsb dsd dse dsf dsi dso dsp dss dsu dub dud due duf dui duo dup dus ebb ebd ebe ebf ebi ebo ebp ebs ebu ed- edb edd ede edf edi edo edp eds edu eeb eed eee eef eeo eep ees ef- efb efd efe eff efi efo efp efs eib eid eie eif eii eio eip eis eiu eo- eob eod eoe eof eoi eoo eop eos eou ep- epb epd epe epf epi epo epp eps epu es- esb esd ese esf esi eso esp ess esu eu- eub eud eue euf eui eup eus fbb fbd fbe fbf fbi fbo fbp fbs fbu fdb fdd fde fdf fdi fdo fdp fds fdu feb fed fee fef fei feo fep fes feu ffd ffe fff ffi ffo ffp ffs ffu fib fid fie fif fii fip fis fiu fob foe fof foi foo fop fos fou fpb fpd fpe fpi fpo fpp fps fpu fsb fsd fse fsf fsi fso fsp fss fsu fub fud fue fuf fui fuo fup fus fuu i-d i-f ibb ibd ibe ibf ibi ibo ibp ibs ibu idb idd ide idf idi ido idp ids idu ie- ied iee ief iei iep ies ifb ifd ife iff ifi ifo ifp ifs ifu iib iid iie iif iii iio iip iis iiu io- iob iod ioe iof ioi ioo iop ios iou ipb ipd ipe ipf ipi ipo ipp ips ipu is- isb isd ise isf isi iso isp iss isu iu- iub iud iue iui iup ius o-i ob- obb obd obe obf obi obo obp obs obu odb odd ode odf odi odo odp ods odu oeb oed oee oef oei oeo oep oes of- ofb ofd ofe off ofi ofo ofp ofs ofu oib oid oie oif oii oio oip ois oiu oo- oob ood oof ooi ooo oop oos op- opb opd ope opf opi opo opp ops os- osb osd ose osf osi oso osp oss osu ou- oud oue ouf oui ouo oup ous p-p pbb pbd pbe pbf pbi pbo pbp pbs pbu pdb pdd pde pdf pdi pdo pdp pds pdu peb ped pee pef pei peo pep pes peu pfb pfd pfe pff pfi pfo pfp pfs pfu pib pid pie pif pii pio pip pis piu pob pod poe pof poi poo pop pos pou ppb ppd ppe ppf ppi ppo ppp pps ppu ps- psb psd pse psf psi pso psp pss psu pub pud pue puf pui pup pus puu sbb sbd sbe sbf sbi sbo sbp sbs sbu sdb sdd sde sdf sdi sdo sdp sds sdu se- seb sed see sef sei seo sep ses seu sfb sfd sfe sff sfi sfo sfp sfs sfu sib sid sie sif sii sio sip sis siu sob sod soe sof soi soo sop sos sou spb spd spe spf spi spo spp sps spu ss- ssb ssd sse ssf ssi sso ssp sss ssu sub sud sue suf sui suo sup sus suu ubb ube ubf ubi ubo ubp ubs ubu udb udd ude udf udi udo udp uds udu ueb ued uee uef uei uep ues ufd ufe uff ufi ufo ufp ufs ufu uib uid uie uif uii uio uip uis uiu uob uod uoe uoo uop uos up- upb upd upe upf upi upo upp ups upu usb usd use usf usi uso usp uss usu uue uus uuu