Let $A + 2B = \begin{pmatrix} 1 & 2 & 0 \\ 6 & -3 & 3 \\ -5 & 3 & 1 \end{pmatrix}$ and $2A - B = \begin{pmatrix} 2 & -1 & 5 \\ 2 & -1 & 6 \\ 0 & 1 & 2 \end{pmatrix}$. If $\text{Tr}(A)$ denotes the sum of all the diagonal elements of the matrix $A$, then $\text{Tr}(A) - \text{Tr}(B)$ has value equal to: