Block(JumpLoop(
  Execute(If(
    Get(
      1000
      4
    )
    1
    2
  ))
  Execute(
    Break(
      1
      Get(
        4001
        9
      )
    )
    3
  )
  Execute(
    Break(
      1
      Get(
        4001
        7
      )
    )
    3
  )
  0
))