[ -4 6 ] 
2 |-> -2 |-> 4 |-> -4
10 |-> 6
-6 |-> 6
-10 |-> -4
f(z) = 1/48*z^3 - 19/12*z + 1
*
[ 12/7 2/7 ] 
-6/7 |-> -4/7 |-> -2/7 |-> 2/7
10/7 |-> 12/7
-10/7 |-> 2/7
-12/7 |-> 12/7
f(z) = -49/48*z^3 + 31/12*z + 1
*
TOTAL: 2