19
-868779 843457 1693077 194125 25507 -247826 380950 -148264 -139074 993201 -786464 412625 538083 322701 -459764 166830 -901503 -843901 -717831 
26
2 1 
 3 1 
12 14
12 16
18 9
19 16
18 8
12 4
18 12
16 18
12 6
10 12
8 16
12 15
14 12
16 14
4 16
4 14
12 17
14 16
8 18
16 17
4 8
10 15
14 4
9 7