p

function piece()
turtle.select(2)
turtle.digDown()
turtle.placeDown()
turtle.turnLeft()
turtle.forward()
turtle.digDown()
turtle.select(1)
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.select(2)
turtle.placeDown()
turtle.turnRight()
turtle.forward()
turtle.digDown()
turtle.placeDown()
turtle.turnRight()
turtle.forward()
turtle.digDown()
turtle.select(1)
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.placeDown()
turtle.forward()
turtle.digDown()
turtle.select(2)
turtle.placeDown()
turtle.turnLeft()
turtle.forward()
end
while not turtle.detect() do piece()
end