-- 1=sandstone
-- 2=bois
-- 3=cobble
-- 4=poudre d'os
-- 5=pousse
while True do
	turtle.select(1)
	if (turtle.compareDown(1)) then
		turtle.turnRight()
			if (turtle.compare(5)) then
				turtle.select(4)
				turtle.place()
				turtle.turnLeft()
			elseif (turtle.detect()) then
			else
				turtle.select(5)
				turtle.place()
				turtle.turnLeft()
			end
	elseif (turtle.compareDown(2)) then
		turtle.turnRight
	elseif (turtle.compareDown(3)) then
		sleep(4)
	else
		turtle.forward
	end
end