The components of pure shear strain in a sheared material are given in the matrix form:
\[
\epsilon = \begin{bmatrix} 1 & 1 \\ 1 & -1 \end{bmatrix}
\]
Here, \(\text{Trace}(\epsilon) = 0\). Given, P = \text{Trace}(\epsilon^8) and Q = \text{Trace}(\epsilon^{11}).
\text{The numerical value of} (P + Q) \text{ is} _________ \text{. (in integer)}.