a-a a-t aaa aad aan aao aar aat aax ad- ada add adn ado adr adt adx an- ana and ann ano anr ant anx aoa aod aon aoo aor aot aox ar- ara ard arn aro arr art arx at- ata atd atn ato atr att atx ax- axa axn axo axr axt axx daa dad dan dao dar dat dax dda ddd ddn ddo ddr ddt ddx dna dnd dnn dno dnr dnt doa dod don doo dor dot dox dra drd drn dro drr drt drx dta dtd dtn dto dtr dtt dtx dxd dxn dxo dxr dxt dxx naa nad nan nao nar nat nax nda ndd ndn ndo ndr ndt nna nnn nno nnt no- noa nod non noo nor not nox nra nrd nrn nro nrr nrt nrx nta ntd ntn nto ntr ntt ntx nxd nxt oaa oad oan oao oar oat oax oda odd odn odo odr odt on- ona ond onn ono onr ont onx oo- ooa ood oon ooo oor oot oox or- ora ord orn oro orr ort orx ot- ota otd otn oto otr ott ox- oxa oxn oxo oxt oxx ra- raa rad ran rao rar rat rax rda rdd rdn rdo rdr rdt rdx rna rnd rnn rno rnr rnt roa rod ron roo ror rot rox rra rrd rrn rrr rrt rta rtd rtn rto rtr rtt rtx rxr t-x taa tad tan tao tar tat tax tda tdd tdn tdo tdr tdt tdx tna tnd tnn tno tnr tnt tnx to- toa tod ton too tor tot tox tra trd trn tro trr trt trx tta ttd ttn tto ttr ttt ttx txn txt xaa xad xan xar xat xda xdr xdt xna xno xoa xod xon xoo xor xot xox xrd xrt xrx xtr xtx xxo xxx