Which side is the red flag on?
The flag is on the left of the image.
     src        edge_attr  dst
0      0  to the right of   26
1      0  to the right of   10
2      0  to the right of   21
3      1   to the left of    4
4      1   to the left of   12
..   ...              ...  ...
97    24  to the right of    7
98    25   to the left of   24
99    25  to the right of    7
100   26   to the left of    0
101   26  to the right of   10

[102 rows x 3 columns]