- setup:
  cleanup:
  args:     '[ [1, 1, 0, 0, 0], [1, 1, 1, 1, 0], [1, 0, 0, 0, 0], [1, 1, 0, 0, 0], [1, 1, 1, 1, 1] ]'
  input:
  output:   2 0 3 1 4
- setup:
  cleanup:
  args:     '[ [1, 0, 0, 0], [1, 1, 1, 1], [1, 0, 0, 0], [1, 0, 0, 0] ]'
  input:
  output:   0 2 3 1