c-- ccc cce ccf cch ccl ccu ce- cec cee cef ceh cel ceu cfc cfe cff cfh cfl cfu ch- chc che chf chh chl chu cl- clc cle clf clh cll clu cuc cue cuf cuh cul cuu ec- ecc ece ecf ech ecl ecu eec eee eef eel ef- efc efe eff efh efl ehc ehe ehf ehh ehl ehu elc ele elf elh ell elu eu- euc eue euf eul fcc fce fcf fcl fcu fec fee fef feh fel feu ffc ffe fff ffh ffl ffu fhc fhe fhf fhh fhl flc fle flf fll flu fue fuf ful fuu hcc hce hcf hch hcl he- hec hee hef heh hel heu hfc hfe hff hfh hfl hfu hhc hhe hhf hhh hhl hhu hlc hle hlf hlh hll hlu huc hue huf huh hul huu lcc lce lcf lch lcl lcu lec lee lef leh lel leu lfc lfe lff lfh lfl lfu lhc lhf lhh lhu llc lle llf lll llu luc lue luf luh lul luu ucc uce ucf uch ucl ucu uec uee uef ueh uel ufc ufe uff ufh ufl ufu uhc uhe uhf uhh uhl uhu ulc ule ulf ull ulu uuc uue uuu