Is the flag in the top or in the bottom part of the picture?
The flag is in the bottom of the image.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    1
2     1               on    0
3     1   to the left of    0
4     2               on    0
5     5   to the left of    6
6     5  to the right of    7
7     6  to the right of    5
8     7   to the left of   21
9     7   to the left of    5
10    9               on   11
11    9   to the left of   21
12   10   to the left of    0
13   12  to the right of   20
14   13      waiting for   21
15   13  to the right of   15
16   13  to the right of   17
17   13   to the left of   18
18   13  to the right of   14
19   13  to the right of   16
20   14      waiting for   21
21   14  to the right of   16
22   14   to the left of   13
23   14  to the right of   15
24   14  to the right of   17
25   14   to the left of   18
26   15  to the right of   16
27   15   to the left of   13
28   15   to the left of   18
29   15  to the right of   17
30   15   to the left of   14
31   15      waiting for   21
32   16  to the right of   17
33   16   to the left of   15
34   16   to the left of   18
35   16   to the left of   14
36   16   to the left of   13
37   16      waiting for   21
38   17   to the left of   16
39   17   to the left of   18
40   17   to the left of   15
41   17   to the left of   14
42   17   to the left of   13
43   17      waiting for   21
44   18  to the right of   17
45   18  to the right of   13
46   18  to the right of   16
47   18  to the right of   14
48   18  to the right of   15
49   18      waiting for   21
50   20               in   19
51   20   to the left of   12
52   21  to the right of    9
53   21  to the right of    7