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