round = 1
max = 5

function pickUp()
  for i = 0, 5 do turtle.suck(64) end
  for i = 0, 5 do turtle.suckUp(64) end
  for i = 0, 5 do turtle.suckDown(64) end
end

while (round < max) do
    for rot = 0, 3 do
        -- First, up
        success, data = turtle.detectUp()
        if success then
          turtle.digUp()
          sleep(1)
          pickUp()
        end

        -- Next, down
        success, data = turtle.detectDown()
        if success then
          turtle.digDown()
          sleep(1)
          pickUp()
        end

        -- Last, forward
        success, data = turtle.detect()
        if success then
          turtle.dig()
          sleep(1)
          pickUp()
        end

        -- Move forward
        turtle.forward()
    end

    round = round + 1
    turtle.turnLeft()
    print("Round", round, "done")
end

print("Done!")