args = {...}

local row = args[1]
local col = args[2]

for i = 1, row do
	for j = 1, col do
		local upstack = 0


		turtle.dig()
		turtle.forward()
		while turtle.detectUp == true do
			upstack += 1
			turtle.digUp()
		end

		while upstack > 0 do
			upstack -= 1
			turtle.down()
		end

	end
	for k = 1, col do
		turtle.back()
	end
	turtle.turnRight()
	turtle.forward()
	turtle.turnLeft()
end