1. 1.
    0
    upupupuppp
    ···
  2. 2.
    0
    upupupppupup
    ···
  3. 3.
    0
    uppuuppupp
    ···
  4. 4.
    0
    upuppuuppuppp
    ···
  5. 5.
    0
    uppupupp
    ···
  6. 6.
    0
    upupuppupp
    ···
  7. 7.
    0
    upupuppup
    ···
  8. 8.
    0
    upuppuuppp
    ···
  9. 9.
    0
    upupupupuppp
    ···