cccc cccf cccl ccfc ccff ccfl cclc ccnc ccnf ccnr ccrc ccrf ccrl cfcf cfcl cfcn cffr cfln cfnr cfrn ckck ckcl ckfr cklf ckln cknc ckrc cnrc cnrr crcc crcr crfc crfl crkc crkl crlf f--k fccf fcnl ffcc ffff ffrr flcl flnc fnlc frcc frcn frfc kccc kcck kccl kccr kcfc kcfl kcfn kckc kckf kckk kckl kckn kckr kclc kclf kclk kcll kcln kclr kcnr kcrc kcrn kcrr kfcf kfcr kfff kffk kffn kflc kflf kfll kfln kfnc kfnf kfnk kfnl kfnn kfrc kfrn kfrr kkck kkcl kkcn kkcr kkfn kkfr kkkk kklc kklf kkll kkln kknn kkrc kkrf kkrk kkrl kkrn kkrr klcc klck klcl klcn klcr klfc klff klfn klkc klkk klkl klkn klkr kllc kllk klnc klnn klrc klrf klrk klrn klrr knck kncn kncr knfl knfr knkk knlc knlf knlr knnk knnr knrk krcc krcl krcn krfc krff krfn krkc krkk krkn krkr krlc krlf krln krnk krnn krrc krrf krrk krrl krrn krrr lccc lcfc lcfr lcrl lfcc llcc lllc llll lncr lnnk lrfc lrrc lrrr nccc nccf nccn nccr ncfc nclc ncln nclr ncnc ncrc nfff nkfc nkrf nlcc nlcf nnnn nrfc nrrc nrrl rccc rcfc rcnl rcnr rffc rffl rkkf rrfc rrrr