function reOrganiseInv()
  for i=3,16 do
    if turtle.getItemCount(i)==0 then
	  if i+1<16
      	turtle.select(i+1)
		turtle.transferTo(i)
	  end
	else
		for o=i,16 do
			turtle.select(i)
			if turtle.compareTo(o) then
				turtle.select(o)
				turtle.transferTo(i)
			end
		end
	end
end
end
function reFuel()
  if turtle.getFuelLevel() <= 200 then
    turtle.select(1)
    turtle.refuel(1)
  end
end
function remainingSlots()
  emptySlots =0
  for i=1,16 do
    if turtle.getItemCount(i)==0 then
      emptySlots=emptySlots+1
    end
  end
  return emptySlots
end
function backTrack()
  turtle.turnLeft()
  turtle.turnLeft()
  count =0

  repeat
    count = count+1
    local success, data = turtle.forward()
    if success then
    end
    if count%5==0 then
      turtle.turnLeft()
      turtle.select(2)
      turtle.place()
      turtle.turnRight()
      turtle.select(1)
    end
  until not success
end
function clearSpace()
  turtle.turnLeft()
  turtle.turnLeft()
  dropCount=0
  for i=1,16 do
    local data = turtle.getItemDetail(i)
    if data then
      if data.name =="minecraft:cobblestone" then
        turtle.select(i)
        turtle.drop()
        dropCount=dropCount+1
      end
    end
  end
  if dropCount ==0 then
    backTrack()
    exit()
  end
  turtle.turnLeft()
  turtle.turnLeft()
end
function tunnelV2(x)
  for i = 1,x do
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.turnLeft()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.turnRight()
    turtle.turnRight()
    turtle.dig()
    turtle.down()
    turtle.dig()
    turtle.turnLeft()
    reFuel()
    if remainingSlots()== 0 then
      clearSpace()
    end
   end
  backTrack()
end
local args={...}
x=args[1]
y=args[2]
for i=1,y do
  turtle.dig()
  turtle.forward()
  turtle.digUp()
  if i%5==0 then
    print("i is : ",i)
    turtle.turnLeft()
    tunnelV2(x)
    turtle.turnLeft()
  end
end