c-- c-j ccc ccf ccj ccs cct cfc cff cfs cft cjc cjf cjs csc csf csj css cst ctc ctf cts ctt fcc fcf fcj fcs fct ffc fff ffs fft fjc fjs fsc fsf fsj fss fst ftc ftf fts ftt jcc jcf jcs jct jfc jff jfj jfs jft jjc jjf jjj jjs jsc jsf jsj jss jst jtc jtf jts jtt scc scf scj scs sct sfc sff sfj sfs sft sjc sjf sjj sjs sjt ss- ssc ssf ssj sss sst stc stf stj sts stt tcc tcf tcj tcs tct tfc tff tfj tfs tft tjc tjf tjs tsc tsf tsj tss tst ttc ttf tts ttt