Is the mat on the right side?
Yes, the mat is on the right of the image.
    src        edge_attr  dst
0     0  to the right of   14
1     1  to the right of   14
2     1   to the left of    4
3     1   to the left of   16
4     2  to the right of   14
5     3  to the right of    8
6     3  to the right of   14
7     4  to the right of   14
8     4  to the right of    1
9     4  to the right of   19
10    5  to the right of   10
11    5  to the right of   14
12    6  to the right of   14
13    7   to the left of   12
14    7  to the right of   10
15    7  to the right of   14
16    8   to the left of   15
17    8  to the right of   10
18    8   to the left of    3
19    8   to the left of   12
20    8  to the right of   14
21    9  to the right of   10
22    9  to the right of   14
23   10   to the left of    5
24   10   to the left of    9
25   10   to the left of    7
26   10  to the right of   18
27   10   to the left of    8
28   11  to the right of   14
29   12  to the right of    8
30   12  to the right of    7
31   12  to the right of   14
32   14   to the left of   19
33   14   to the left of    8
34   14   to the left of    6
35   14   to the left of   16
36   14   to the left of    3
37   14   to the left of    0
38   14   to the left of    1
39   14   to the left of    5
40   14   to the left of   15
41   14   to the left of   12
42   14   to the left of    9
43   14   to the left of    7
44   14   to the left of    4
45   14   to the left of   11
46   14   to the left of    2
47   15  to the right of   14
48   15  to the right of    8
49   16  to the right of    1
50   16  to the right of   14
51   17          hitting   18
52   17  to the right of   18
53   18   to the left of   17
54   18   to the left of   10
55   19  to the right of   14
56   19   to the left of    4