input:

256
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 10...

output:

0 0 
1 
2 
3 1 
4 
5 3 
6 2 
7 
8 
9 7 
10 6 
11 
12 4 
13 
14 
15 5 
16 
17 15 
18 14 
19 
20 12 
21 
22 
23 13 
24 8 
25 
26 
27 9 
28 
29 11 
30 10 
31 
32 
33 31 
34 30 
35 
36 28 
37 
38 
39 29 
40 24 
41 
42 
43 25 
44 
45 27 
46 26 
47 
48 16 
49 
50 
51 17 
52 
53 19 
54 18 
55 
56 
57 23 
5...

result:

wrong answer 1st lines differ - expected: '0 255 254 1 252 3 2 253 248 7 ...173 168 87 86 169 84 171 170 85', found: '0 0 '