1. 101.
    0
    up up up
    ···
  2. 102.
    0
    up up up
    ···
  3. 103.
    0
    up up up
    ···
  4. 104.
    0
    up up up
    ···
  5. 105.
    0
    up up up
    ···
  6. 106.
    0
    up up up
    ···
  7. 107.
    0
    up up up
    ···
  8. 108.
    0
    up up up
    ···