cccc cccf cccl ccee ccel ccfc ccff ccfl cclc cec- cece ceec ceel cef- cefc ceke cel- celc cele celf cell cfcf cfcl ckck ckcl cklf clec clee clef clek e-cl eccc ecce eccl ecef ecfc eeee eefe eefl eeke eele efke ekek ekfc elce elec elee elef elek elfc elfe elke elle f--k fccf fece feck feek feel fefc fefe feff feke fele felf felk fell ffcc ffee ffff flcl flee kccc kcck kccl kcec kcee kcel kcfc kcfl kckc kckf kckk kckl kclc kcle kclf kclk kcll keck keef keek keel kefc keff kekc keke kekl kele kelf kelk kell kfcf kfel kfff kffk kflc kflf kfll kkck kkcl kkkk kklc kklf kkll klcc klce klck klcl klec klee klef klek klfc klfe klff klkc klkk klkl kllc klle kllk lccc lcce lcfc lece leck leef leek leel lefe leff leke lekk lele lell lfcc llcc llef lllc llll