N fx
 3 
 0 
 220 
 403 
0
0
0
0
0
0
0
0
0
0
 1 
 450 
 415 
0
0
0
0
0
0
0
0
0
0
 80 
 325 
 407 
x*0.3+x2*0.5+x3*0.2
0
0
0
0
0
0
0
0
0
Nlinks
 6 
-
 1 
 1 
-
 2 
 1 
-
 2 
 1 
-
 2 
 1 
-
 3 
 1 
-
 2 
 1 
-
 1 
 1 
-
 0 
 2 
-
 2 
 2 
-
 0 
 2 
-
 3 
 3 
-
 0 
 2 
