local args = {...}
local amt = args[1]
local input = ""
if #args ~= 1 then
	print("Usage: mine <amt in 1/2 chunks>")
	do return end
end
turtle.select(1)
print("Put " .. amt .. " torches into slot 1 of this turtle.")
print("To start, press \"y\"")
while input~="y" do
	input = read()
end
for t=1,amt do
	for i=1,2 do
		for j=1,4 do
			while turtle.detect() do
				turtle.dig()
			end
			if i==2 and j==3 then
				turtle.select(1)
				turtle.down()
				turtle.dig()
				turtle.placeUp()
				turtle.forward()
				turtle.up()
			else
				turtle.forward()
				turtle.digDown()
			end
		end
		turtle.turnLeft()
		for i=1,2 do
			for i=1,5 do
				while turtle.detect() do
					turtle.dig()
				end
				turtle.forward()
			end
			turtle.turnLeft()
			turtle.turnLeft()
			for i=1,5 do
				turtle.forward()
			end
		end
		turtle.turnRight()
	end
end