1. 76.
    0
    aaaaaaaaaaaaaaaaaaaaaaaa
    ···
  2. 77.
    0
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    ···
  3. 78.
    0
    aaaaaaaaaaaaaaaa
    ···
  4. 79.
    0
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    ···