[ 2/11 ] [ -2 ] [ 20/11 ] 
18/11 |-> 2/11
-2/11 |-> 20/11
12/11 |-> -2
-18/11 |-> 20/11
10/11 |-> -2
-20/11 |-> 2/11
f(z) = 121/80*z^3 - 91/20*z + 1
*
[ -2 ] [ 2/13 ] [ 24/13 ] 
22/13 |-> 2/13
18/13 |-> -2
8/13 |-> -2
-2/13 |-> 24/13
-22/13 |-> 24/13
-24/13 |-> 2/13
f(z) = 169/96*z^3 - 133/24*z + 1
*
[ -10 ] [ 12 ] [ -2 ] 
-12 |-> -10
-22 |-> 12
22 |-> -10
-18 |-> -2
20 |-> -2
10 |-> 12
f(z) = -1/240*z^3 + 91/60*z + 1
*
[ -4/13 ] [ -2 ] [ 30/13 ] 
34/13 |-> -4/13
4/13 |-> 30/13
36/13 |-> -2
-34/13 |-> 30/13
-10/13 |-> -2
-30/13 |-> -4/13
-14/13 | 0.20460682032389289538938544192760675121 | 0.029468992171508792563618625512028591634
f(z) = -169/240*z^3 + 259/60*z + 1
*
TOTAL: 4