4
  0 0 0 3 4 0 3 5
6
  0 0 0 3 4 0 3 5 2 6 3 1
25
  1 0 1 1 100 100   100 101 1 2 1 3 1 4
1 5 1 6 1 7 1 8 1 9
  1 10 1 11 1 12 1 13 1 14 1 15 1 16 1
17 1 18 1 19 1 20 1 21 1 22
30
  1 0    1 0.1  10 0  10 0.1    20 0
      20 0.1
  1 0.2    10 0.2     20 0.2
  1 0.3    10 0.3     20 0.3
  1 0.4    10 0.4     20 0.4
  1 0.5    10 0.5     20 0.5
  1 0.6    10 0.6     20 0.6
  1 0.7    10 0.7     20 0.7
  1 0.8    10 0.8     20 0.8
  1 0.9    10 0.9     20 0.9
0