program main
  implicit none

  character(len=100) :: s
  character(len=7) :: c
  integer :: n

  read(*,*) s

  n = len_trim(s)
  c = 'keyence'

  if(index(s,c) /= 0) then
     if (index(s,c) == 1 .or. index(s,c, back=.true.) == n-6) then
        write(*,*) 'YES'
     else
        write(*,*) 'NO'
     end if
     stop
  else
     if(index(s,c(1:1)) /= 0) then
        if(index(s,c(2:7)) /= 0) then
           if(index(s,c(1:1)) == 1 .and. index(s,c(2:7), back=.true.) == n-5) then
              write(*,*) 'YES'
              stop
           end if
        else
           if(index(s,c(1:2)) /= 0) then
              if(index(s,c(3:7)) /= 0) then
                 if(index(s,c(1:2)) == 1 .and. index(s,c(3:7), back=.true.) == n-4) then
                    write(*,*) 'YES'
                    stop
                 end if
              else
                 if(index(s,c(1:3)) /= 0) then
                    if(index(s,c(4:7)) /= 0) then
                       if(index(s,c(1:3)) == 1 .and. index(s,c(4:7), back=.true.) == n-3) then
                          write(*,*) 'YES'
                          stop
                       end if
                    else
                       if(index(s,c(1:4)) /= 0) then
                          if(index(s,c(5:7)) /= 0) then
                             if(index(s,c(1:4)) == 1 .and. index(s,c(5:7), back=.true.) == n-2) then
                                write(*,*) 'YES'
                                stop
                             end if
                          else
                             if(index(s,c(1:5)) /= 0) then
                                if(index(s,c(6:7)) /= 0) then
                                   if(index(s,c(1:5)) == 1 .and. index(s,c(6:7), back=.true.) == n-1) then
                                      write(*,*) 'YES'
                                      stop
                                   end if
                                else
                                   if(index(s,c(1:6)) /= 0) then
                                      if(index(s,c(7:7)) /= 0) then
                                         if(index(s,c(1:6)) == 1 .and. index(s,c(7:7), back=.true.) == n) then
                                            write(*,*) 'YES'
                                            stop
                                         end if
                                      else
                                         
                                      end if
                                   end if                     
                                end if
                             end if
                          end if
                       end if
                    end if
                 end if
              end if
           end if
        end if
     end if
     write(*,*) 'NO'
  end if
end program main
