Are there any numbers that are not gold?
Yes, there are black numbers.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    2
2     0  to the right of   14
3     1   to the left of    7
4     1   to the left of    2
5     2  to the right of    9
6     2  to the right of   14
7     2  to the right of   10
8     2  to the right of    8
9     2  to the right of   15
10    2  to the right of   13
11    2   to the left of    3
12    2  to the right of   12
13    2  to the right of   11
14    2  to the right of    1
15    2  to the right of    6
16    2  to the right of    7
17    2  to the right of    0
18    3  to the right of   15
19    3  to the right of    7
20    3  to the right of   10
21    3  to the right of   13
22    3  to the right of    0
23    3  to the right of    2
24    3  to the right of    9
25    3  to the right of   14
26    3  to the right of    8
27    4   to the left of   13
28    4   to the left of   10
29    6   to the left of    2
30    6   to the left of    8
31    6   to the left of    9
32    7   to the left of    3
33    7  to the right of    1
34    7   to the left of    2
35    8  to the right of    6
36    8   to the left of    2
37    8   to the left of    3
38    9  to the right of    6
39    9   to the left of    3
40    9   to the left of    2
41   10   to the left of    3
42   10   to the left of    2
43   10  to the right of    4
44   11   to the left of    2
45   11   to the left of   14
46   12   to the left of   14
47   12   to the left of    2
48   13  to the right of    4
49   13   to the left of    2
50   13   to the left of    3
51   14   to the left of   15
52   14   to the left of    0
53   14   to the left of    2
54   14   to the left of    3
55   14  to the right of   11
56   14  to the right of   12
57   15  to the right of   14
58   15   to the left of    3
59   15   to the left of    2