On which side is the flag?
The flag is on the left of the image.
    src        edge_attr  dst
0     0  to the right of   15
1     0   to the left of   13
2     0  to the right of   11
3     0  to the right of   12
4     1  to the right of   14
..  ...              ...  ...
57   16  to the right of   12
58   17  to the right of    4
59   17  to the right of    6
60   17  to the right of    5
61   17  to the right of    3

[62 rows x 3 columns]