a-a a-t aaa aad aao aar aat aax ad- ada add ado adr adt adx aoa aod aoo aor aot aox ar- ara ard aro arr art arx at- ata atd ato atr att atx ax- axa axo axr axt axx daa dad dao dar dat dax dda ddd ddo ddr ddt ddx doa dod doo dor dot dox dra drd dro drr drt drx dta dtd dto dtr dtt dtx dxd dxo dxr dxt dxx oaa oad oao oar oat oax oda odd odo odr odt oo- ooa ood ooo oor oot oox or- ora ord oro orr ort orx ot- ota otd oto otr ott ox- oxa oxo oxt oxx ra- raa rad rao rar rat rax rda rdd rdo rdr rdt rdx roa rod roo ror rot rox rra rrd rrr rrt rta rtd rto rtr rtt rtx rxr t-x taa tad tao tar tat tax tda tdd tdo tdr tdt tdx to- toa tod too tor tot tox tra trd tro trr trt trx tta ttd tto ttr ttt ttx txt xaa xad xar xat xda xdr xdt xoa xod xoo xor xot xox xrd xrt xrx xtr xtx xxo xxx