c-- ccc cco ccr cct ccu ccx co- coc coo cor cot cou cox crc cro crr crt cru crx ctc cto ctr ctt ctu ctx cuc cuo cur cut cuu cxc cxo cxr cxt cxx oc- occ oco ocr oct ocu ocx oo- ooc ooo oor oot oox or- orc oro orr ort oru orx ot- otc oto otr ott otu ou- ouc ouo our out ox- oxc oxo oxt oxx rcc rco rcr rct rcu rcx roc roo ror rot rou rox rrc rrr rrt rru rtc rto rtr rtt rtu rtx ruc ruo rur rut ruu rux rxr t-x tcc tco tcr tct tcu tcx to- toc too tor tot tou tox trc tro trr trt tru trx ttc tto ttr ttt ttu ttx tuc tuo tur tut tuu tux txt txu ucc uco ucr uct ucu uoc uoo uor uot uox ur- urc uro urr urt uru urx utc uto utr utt utu utx uuc uur uut uuu uxc uxo uxr uxt uxu xcr xcx xoc xoo xor xot xox xrc xrt xrx xtc xtr xtx xxo xxx