rhr rht ria ric rid rie rif rih rii rio rir rit rix roa roc rod roe rof roh roi roo ror rot rox rra rrc rrd rrf rrh rri rrr rrt rta rtc rtd rte rtf rti rto rtr rtt rtx rxr t-x taa tac tad tae taf tah tai tao tar tat tax tca tcc tcd tce tcf tch tci tco tcr tct tcx tda tdc tdd tde tdf tdh tdi tdo tdr tdt tdx te- tea tec ted tee tef teh tei teo ter tet tex tfa tfc tfd tfe tff tfh tfi tfo tfr tft tfx th- tha thc thd the thf thh thi tho thr tht thx tia tic tid tie tif tih tii tio tir tit tix to- toa toc tod toe tof toh toi too tor tot tox tra trc trd tre trf trh tri tro trr trt trx tta ttc ttd tte ttf tth tti tto ttr ttt ttx txe txf txi txt xaa xac xad xaf xar xat xcd xcf xch xci xcr xcx xda xdc xde xdf xdh xdi xdr xdt xed xee xer xet xex xfa xfe xfh xft xfx xhd xht xia xic xie xii xio xit xix xoa xoc xod xof xoi xoo xor xot xox xrc xrd xrf xrt xrx xtc xtf xti xtr xtx xxi xxo xxx