Cvide

local distance=0
for i=1,4 do
  turtle.forward()
end
turtle.turnLeft()
while turtle.getItemCount(16)==0 do
  if not turtle.detect() then
    turtle.forward()
    distance=distance+1
    turtle.turnLeft()
    if turtle.suck() then
      for i=1,16 do
        turtle.select(i)
        turtle.suck()
      end
      turtle.turnRight()
      break
    end
    turtle.turnRight()
    turtle.turnRight()
    if turtle.suck() then
      for i=1,16 do
        turtle.select(i)
        turtle.suck()
      end
      turtle.turnLeft()
      break
    end
    turtle.turnLeft()
  else
    break
  end
end
turtle.turnLeft()
turtle.turnLeft()
while distance>0 do
  turtle.forward()
  distance=distance-1
end
turtle.turnRight()
while not turtle.detect() do
  turtle.forward()
end
while not turtle.detectUp() do
  turtle.up()
end
for i=1,16 do
  turtle.select(i)
  turtle.dropUp()
end
turtle.select(1)
while not turtle.detectDown() do
  turtle.down()
end
turtle.turnLeft()
turtle.turnLeft()