staircase4x4

for a = 1,2 do
  turtle.up()
end

function oneRowRight()
  turtle.dig()
  turtle.forward()
  turtle.turnRight()
  turtle.dig()
  turtle.forward()
  turtle.dig()
  turtle.forward()
  turtle.dig()
  turtle.back()
  turtle.back()
  turtle.turnLeft()
  turtle.back()
  turtle.down()
end

for cc = 1,3 do
  oneRowRight()
end

turtle.forward()
turtle.digDown()
turtle.down()
oneRowRight()