Let $A+2 B=\left[\begin{array}{ccc}1 & 2 & 0 \\ 6 & -3 & 3 \\ -5 & 3 & 1\end{array}\right]$ and $2 A-B=\left[\begin{array}{ccc}2 & -1 & 5 \\ 2 & -1 & 6 \\ 0 & 1 & 2\end{array}\right]$.If $\operatorname{Tr}(A)$ denotes the sum of all diagonal elements of the matrix A , then $\operatorname{Tr}(\mathrm{A})- \operatorname{Tr}(B)$ has value equal to