# File test.rb, line 10
 def Test::printtree tree
		tree.traverse {|child, depth|
			unless child.nil?
			  	p = "-"
				unless child.parent.nil?
				  print "<"*depth if child == child.parent.left
				  print ">"*depth if child == child.parent.right
				end
				print " #{child.value} (#{child.color})"
				print " [#{child.parent.value}]" unless child.parent.nil?
			end
			puts ""
		}
	end