ref: 4aa0e6c6b8a1a23b144b0382d6156aaa55b2c7fd 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