m-r mmm mmn mmr mmt mmx mnm mnn mnr mnt mrm mrn mrr mrt mrx mtm mtn mtr mtt mtx mxn mxr nmm nmn nmr nmt nnm nnn nnt nrm nrn nrr nrt nrx ntm ntn ntr ntt ntx nxt rmm rmn rmr rmt rmx rnm rnn rnr rnt rrm rrn rrr rrt rtm rtn rtr rtt rtx rxr t-x tmm tmn tmr tmt tmx tnm tnn tnr tnt tnx trm trn trr trt trx ttm ttn ttr ttt ttx txn txt xmm xmr xmt xmx xrt xrx xtm xtr xtx xxx

mmmm mmxx mntn mrtm mrtn mrtt mtnt mtnx mtrr mttr nmnt nmrx nnmt nnnn nntn nttm nttr rnnt rrrr tmnt tmtt trtr tttt txtr xxxx

mmmmm mt-tm mt-tn mt-tr mt-tt rmnmn rnmnt tntnt ttttt

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mmmmmmmmmmmm xxxxxxxxxxxx