local tArgs = { ... }
local depth = 0

if #tArgs ~= 1 then
	print("Usage: rowExcavate <length>")
	return
end

length = tonumber(tArgs[1])
os.loadAPI("try")

for i = 1,length do
	while try.down() do
		depth = depth + 1
	end
	while depth ~= 0 do
		try.up()
		depth = depth - 1
	end
	if i ~= length then
		if not try.forward() then
			print("Cannot move forward! Exiting script!")
			return
		end
	end
end