c-- ccc cce ccl cct ccu ce- cec cee cel cet ceu cl- clc cle cll clt clu ctc cte ctl ctt ctu cuc cue cul cut cuu ec- ecc ece ecl ect ecu eec eee eel eet elc ele ell elt elu etc ete etl ett etu eu- euc eue eul eut lcc lce lcl lct lcu lec lee lel let leu llc lle lll llt llu ltc lte ltl ltt ltu luc lue lul lut luu tcc tce tcl tct tcu te- tec tee tel tet teu tlc tle tll tlt tlu ttc tte ttl ttt ttu tuc tue tul tut tuu ucc uce ucl uct ucu uec uee uel uet ulc ule ull ult ulu utc ute utl utt utu uuc uue uut uuu