def countColor(lines:, color:)
	count = 0
	lines.each do |line|
		if line == color
			count += 1
		end
	end
	return count
end

lines = []
i = 0
while i < 3
	lines[i] = gets.chomp
	i += 1
end

if countColor(lines: lines, color: "RED") > countColor(lines: lines, color: "BLUE")
	puts "RED"
else
	puts "BLUE"
end