Counting sort on [22 10 15 3 8 2] (keys 0..22)
  counts:        [0 0 1 1 0 0 0 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 1]
  running total: [0 0 1 2 2 2 2 2 3 3 4 4 4 4 4 5 5 5 5 5 5 5 6]
  result [2 3 8 10 15 22]
Radix sort (base 10) on [22 10 15 3 8 2]
  by digit of 1s: [10 22 2 3 15 8]
  by digit of 10s: [2 3 8 10 15 22]
  result [2 3 8 10 15 22]
Radix sort (base 10) on [329 457 657 839 436 720 355]
  by digit of 1s: [720 355 436 457 657 329 839]
  by digit of 10s: [720 329 436 839 355 457 657]
  by digit of 100s: [329 355 436 457 657 720 839]
  result [329 355 436 457 657 720 839]
