text: 2 10
  0 0 0 0 8 2
  0 0 0 0 9 2
  0 0 0 1 8 8
  0 0 0 1 9 8
  0 0 0 2 1 1
  0 0 0 8 1 1
  0 0 0 9 0 1
  0 0 1 0 0 9
  0 0 1 1 0 9
  0 0 1 1 8 8
  0 0 1 1 9 8
  0 0 1 2 8 8
  0 0 1 2 9 8
  0 0 1 3 9 8
  0 0 1 4 0 9
  0 0 2 1 9 8
  0 0 8 1 2 1
  0 0 8 1 9 2
  0 0 8 2 1 1
  0 0 8 2 3 1
  0 0 9 0 0 4
  0 1 1 3 0 9
  0 1 6 0 1 9
  0 1 8 2 9 2
  0 2 0 0 1 3
  0 2 0 0 2 3
  0 2 0 0 3 3
  0 2 3 0 1 2
  0 2 3 0 2 2
  0 3 0 0 2 3
  0 3 0 0 3 3
  0 6 0 1 9 8
  0 8 0 0 0 1
  0 9 0 0 0 1
  1 0 0 1 0 1
  1 0 0 1 1 1
  1 0 0 1 8 1
  1 0 0 1 9 2
  1 0 0 2 1 1
  1 0 0 6 0 1
  1 0 1 0 0 0
  1 0 1 0 1 0
  1 0 2 1 1 1
  1 0 3 1 1 1
  1 0 8 1 0 3
  1 0 8 1 2 1
  1 0 8 3 9 2
  1 0 9 0 1 0
  1 0 9 2 1 1
  1 1 4 1 0 3
  1 3 0 0 0 1
  1 3 1 0 0 3
  1 4 1 0 0 3
  1 6 0 0 0 1
  1 7 1 0 0 3
  2 0 2 3 4 1
  2 0 2 8 3 1
  2 0 8 1 1 1
  2 1 0 0 6 2
  2 1 4 1 0 3
  2 1 4 1 6 2
  2 1 9 1 3 3
  2 1 9 3 6 2
  2 2 1 0 3 8
  2 2 8 0 3 9
  2 3 1 0 3 8
  2 3 8 0 3 9
  2 3 9 1 3 3
  2 3 9 1 7 3
  3 0 0 2 0 1
  3 1 0 0 0 1
  3 2 1 1 8 2
  3 3 1 0 0 3
  3 3 7 1 3 3
  3 4 1 0 0 3
  3 6 0 0 0 1
  3 9 4 2 0 0
  3 9 6 2 1 4
  4 0 6 0 0 4
  6 1 1 9 0 0
  8 1 0 0 1 6
  8 1 1 1 0 0
  8 1 1 2 1 0
  8 1 2 1 1 0
  8 1 2 2 0 0
  8 1 2 3 0 0
  8 1 9 3 6 1
  8 1 9 4 1 0
  8 1 9 8 0 0
  8 3 3 0 3 7
  9 0 0 0 0 6
  9 0 1 0 0 6
  9 0 6 0 0 4
  9 1 1 9 0 0
  9 3 3 0 1 7
  9 3 7 0 3 3
  