c-- ccc ccn cco ccr cct ccu cn- cnc cnn cno cnr cnt cnu co- coc con coo cor cot cou crc crn cro crr crt cru ctc ctn cto ctr ctt ctu cuc cun cuo cur cut cuu ncc ncn nco ncr nct ncu nnc nnn nno nnt nnu no- noc non noo nor not nou nrc nrn nro nrr nrt nru ntc ntn nto ntr ntt ntu nuc nun nuo nur nut nuu oc- occ ocn oco ocr oct ocu on- onc onn ono onr ont onu oo- ooc oon ooo oor oot or- orc orn oro orr ort oru ot- otc otn oto otr ott otu ou- ouc oun ouo our out rcc rcn rco rcr rct rcu rnc rnn rno rnr rnt rnu roc ron roo ror rot rou rrc rrn rrr rrt rru rtc rtn rto rtr rtt rtu ruc run ruo rur rut ruu tcc tcn tco tcr tct tcu tnc tnn tno tnr tnt to- toc ton too tor tot tou trc trn tro trr trt tru ttc ttn tto ttr ttt ttu tuc tun tuo tur tut tuu ucc ucn uco ucr uct ucu un- unc unn uno unr unt unu uoc uon uoo uor uot ur- urc urn uro urr urt uru utc utn uto utr utt utu uuc uun uur uut uuu