cccc ccci cccl ccgc ccgt ccic ccii ccil cclc cclg ccli ccoc cctc cctl cctt cgcc cgcg cgtl cicc cici cico cict cigi ciii ciit cili cill cilo cilt citg citi citl cito citt clic clig clii clio clit clog cloo clot cltc coco coct cogi cogo coil coit col- coli coll colo colt cool coot cotc coti coto cott ctic ctlg ctol ctot gc-c gccc gcic gcii gclc gctc ggcl gggg gigg gigi gigo gilg gili gill gilo gilt giog gioi gito glcc gli- glic glit glog glot gogi gogo goit goli goll golo golt goog gooi gool goot goti gotl goto gott gtco i-go iccc icci iccl icco icct icgc icll icoc igcc igil igli iglo igoo igot iiii iiio iiit iioi iioo iitt ilic ilio ilit ill- illi illo illt iloc ilog iloo ilot iocg ioci iogt ioii ioio ioit iolo iooi iooo ioto itgc itgo itic itil itll itoi itol itoo itto lccc lctl lcto lico lict ligc ligg ligi ligo liig liii lilg lili lill lilo lilt lio- liti litl lito litt llcc llgc lllc llll lloc lloo locc loci loco log- logi logo loic loit loli loll lolo looc lool loot loti lotl loto lott ltcc ltcg ltci lttc occc occi occt oclc oct- octi octo oggi ogli ogog ogoi oici oigo oiii oitc oiti olcc olgc olic olig olio olit olli ollo olog olot oolo oooo otcl otic otit oto- otog otoo otti otto tccc tctc tgcc tgtc ticc tico tigi tiit till tilo tilt titc titi tito titt tlco tlgc tlli toci toco togo togt toil toit tol- toli toll tolo tolt tool toot totc toti toto tott tttt