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