c-- ccc ccd cck cct ccu ccv cdc cdd cdk cdt cdu cdv ckc ckd ckt ctc ctd ctk ctt ctu ctv cuc cud cuk cut cuu cuv cvc cvd cvk cvt cvu cvv dcc dcd dck dct dcu dcv ddc ddd ddk ddt ddu dkc dkk dkt dku dtc dtd dtk dtt dtu dtv duc dud duk dut duv dvc dvd dvk dvt dvu k-t kcc kcd kck kct kcu kdc kdk kdt kdu kkc kkk kkt kku kkv ktc ktk ktt ktu ktv kuc kud kuk kut kuu kvk kvv tcc tcd tck tct tcu tcv tdc tdd tdk tdt tdu tdv tkc tkk tkt ttc ttd ttk ttt ttu ttv tuc tud tuk tut tuu tuv tvc tvd tvk tvt tvu ucc ucd uck uct ucu ucv udc udd udk udt udu udv ukc ukk uku utc utd utk utt utu utv uuc uut uuu uvc uvu uvv vcc vcd vct vcu vdc vdd vdk vdt vdu vdv vkt vtc vtk vtt vtu vtv vuk vut vuv vvc vvt vvv