program main
    implicit none
    integer::i=0,j,k
    character(4)::s
    do j=1,3
        read*,s
        if(s=="BLUE")then
            i=i-1
        else
            i=i+1
        end if
    end do
    if(i<0)then
        print*,"BLUE"
    else
        print*,"RED"
    end if
end program