1. 1.
    0
    upupupupupup
    ···
  2. 2.
    0
    upupupupupup
    ···
  3. 3.
    0
    upupupupupup
    ···
  4. 4.
    0
    upupupupupup
    ···
  5. 5.
    0
    upupupupupupup
    ···
  6. 6.
    0
    upupupupup
    ···
  7. 7.
    0
    upupupupupup
    ···
  8. 8.
    0
    upupupupup
    ···