N fx
 4 
 0 
 172 
 497 
0
0
0
0
0
0
0
0
0
0
 1 
 678 
 510 
0
0
0
0
0
0
0
0
0
0
 86 
 489 
 504 
50
0
15
0
0
0
0
0
0
0
 7 
 320 
 543 
0
29
59
12
0
0
0
0
0
0
Nlinks
 7 
-
 1 
 1 
-
 2 
 1 
-
 2 
 1 
-
 2 
 1 
-
 3 
 1 
-
 2 
 1 
-
 1 
 1 
-
 0 
 3 
-
 2 
 2 
-
 0 
 3 
-
 3 
 3 
-
 0 
 3 
-
 1 
 1 
-
 3 
 2 
