-er bbb bbe bbh bbi bbm bbn bbo bbr bbx be- beb bee beh bei bem ben beo ber bex bhb bhe bhh bhi bhm bho bhr bhx bi- bib bie bih bii bim bin bio bir bix bmb bme bmh bmi bmm bmn bmo bmr bmx bnb bne bni bnn bno bnr bnx bob boe boh boi bom bon boo bor box brb bre brh bri brm brn bro brr brx bxb bxi bxm bxn bxo bxx ebb ebe ebh ebi ebm ebn ebo ebr ebx eeb eee eem een eeo eer eex ehb ehe ehh ehi ehm ehn eho ehr eib eie eii eim ein eio eir eix em- emb eme emh emi emm emn emo emr emx en- enb ene enh eni enm enn eno enr eo- eob eoe eoh eoi eom eon eoo eor erb ere erh eri erm ern ero err ex- exe exh exi exo exr exx h-i hbb hbe hbh hbi hbm hbn hbo hbr hbx he- heb hee heh hei hem hen heo her hex hhb hhe hhh hhi hhm hhn hho hhr hib hie hih hii him hin hio hir hix hmb hme hmh hmi hmm hmo hmr hmx hnb hne hnh hnn hno hob hoe hoh hoi hom hon hoo hor hox hr- hrb hre hrh hri hrm hrn hro hrr hxm ibb ibe ibh ibi ibm ibn ibo ibr ibx ie- iee iei iem ien ier iex ihb ihe ihh ihi ihm ihn iho ihr iib iie iih iii iim iin iio iir iix im- imb ime imh imi imm imn imo imx in- inb ine inh ini inm inn ino inr inx io- iob ioe ioh ioi iom ion ioo ior ir- irb ire iri irm irn iro irr irx ixe ixi ixn m-o m-r mbb mbe mbh mbi mbm mbo mbr mbx meb mee meh mei mem men meo mer mex mhh mhi mhm mhn mho mhr mhx mi- mib mie mih mii mim min mio mir mix mmb mme mmh mmi mmm mmn mmo mmr mmx mnb mne mni mnm mnn mno mnr mob moe moh moi mom mon moo mor mox mrb mre mrh mri mrm mrn mro mrr mrx mxi mxn mxr n-i nbb nbe nbi nbm nbn nbo nbr nbx ne- neb nee neh nei nem nen neo ner nex nhb nhe nhh nhi nhm nhn nhr nib nie nih nii nim nin nio nir nix nmb nme nmh nmi nmm nmn nmo nmr nnb nne nnh nni nnm nnn nno no- nob noe noh noi nom non noo nor nox nrb nre nri nrm nrn nro nrr nrx o-i ob- obb obe obh obi obm obn obo obr obx oeb oee oeh oei oem oen oeo oer oex ohe ohh ohi ohm ohn oho ohr oib oie oii oim oin oio oir om- omb ome omh omi omm omn omo omr omx on- onb one onh oni onn ono onr onx oo- oob ooh ooi oom oon ooo oor oox or- orb ore orh ori orm orn oro orr orx ox- oxb oxi oxn oxo oxx rbb rbe rbh rbi rbm rbn rbo rbr rbx re- reb ree reh rei rem ren reo rer rex rh- rhb rhe rhh rhi rhm rhn rho rhr rib rie rih rii rim rin rio rir rix rmb rme rmh rmi rmm rmn rmo rmr rmx rnb rnh rni rnm rnn rno rnr rob roe roh roi rom ron roo ror rox rrb rrh rri rrm rrn rrr rxr xbe xbr xbx xee xem xen xer xex xie xii xin xio xix xmh xmi xmm xmo xmr xmx xno xoi xom xon xoo xor xox xrx xxi xxo xxx