character*8::S
  character*8::yukiko='yukiko',oda='oda',teban
  character*8::board(8)
  integer::t=0,i,j

  read *,S
  read *,board

  do i=1,8
     do j=1,8
        if(board(i)(j:j).ne.'.') then
           t = t + 1
        end if
     end do
  end do

  if(TRIM(S).eq.yukiko) then
     if(MOD(t,2).eq.0) then
        teban = yukiko
     else
        teban = oda
     end if
  else
     if(MOD(t,2).eq.0) then
        teban = oda
     else
        teban = yukiko
     end if
  end if

  print '(a)', teban
end program