local rb = require("robot")
local os = require 'os'

function dig()
  rb.swing(3, false)
  rb.turnLeft()
  rb.forward()
  rb.turnRight()
  rb.swing(3, false)
  rb.turnRight()
  rb.forward()
  rb.forward()
  rb.turnLeft()
  rb.swing(3, false)
  rb.turnLeft()
  rb.forward()
  rb.turnRight()
  rb.down()
  rb.swing(3, false)
  rb.turnLeft()
  rb.forward()
  rb.turnRight()
  rb.swing(3, false)
  rb.turnRight()
  rb.forward()
  rb.forward()
  rb.turnLeft()
  rb.swing(3, false)
  rb.up()
  rb.up()
  rb.swing(3, false)
  rb.turnLeft()
  rb.forward()
  rb.forward()
  rb.turnRight()
  rb.swing(3, false)
  rb.turnRight()
  rb.forward()
  rb.turnLeft()
  rb.swing(3, false)
  rb.down()
 end

function  store()
  rb.back()
  rb.placeDown(0, false)
  local i = 2
  while i < 17 do
  rb.select(i)
  rb.dropDown()
  i = i+1
  end
  end
  while true do
  if rb.count(16) == 0 then
  dig()
  rb.forward()
  else
  store()
  rb.select(1)
  rb.forward()
  end
  if rb.count(1) == 0 or rb.durability() == nil then
  break
  end
  end