ソート前 [ 8, 2, 7, 5, 4, 8, 0, 1, 6, 7, 7, 3, 8, 0, 7, 9, 5, 0, 4, 4, 1, 1, 3, 5, 1, 8, 9, 1, 0, 8 ] ソート後 [ 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9 ]