ref: 74b3aaed1a5a978a4d64ae4bdce9b0cdcf82860c dir: /test/data/stdsort-expected/
0 1 2 3 4 5 6 7 8 9 --- 1 2 3 4 5 6 7 8 9 10 --- C Cc a aa b cC d f fuckit go