[ 5/2 -4 ] 
4 |-> -1/2 |-> 5/2
1/2 |-> -1/2
-7/2 |-> 9/2 |-> 5/2
-9/2 |-> -1/2
f(z) = 1/6*z^3 - 73/24*z + 1
*
TOTAL: 1