place

for side=1,4,1 do
  turtle.select(side)
  for each=1,5,1 do
    if turtle.placeDown() == false then
      repeat
        for tool=14,16,1 do
          turtle.select(tool)
          turtle.equipLeft()
          turtle.digDown()
          turtle.drop()
          turtle.equipLeft()
        end
        turtle.select(side)
      until turtle.placeDown()
    end
    if turtle.forward() == false then
      repeat
        for tool=14,16,1 do
          turtle.select(tool)
          turtle.equipLeft()
          turtle.dig()
          turtle.drop()
          turtle.equipLeft()
        end
        turtle.select(side)
      until turtle.forward()
    end
  end
  turtle.turnRight()
end