Let \(A + 2B = \left[ {\begin{array}{*{20}{c}} 1&2&0\\ 6&{ - 3}&3\\ { - 5}&3&1 \end{array}} \right]\) and \(2A - B = \left[ {\begin{array}{*{20}{c}} 2&-1&5\\ 2&{ - 1}&6\\ 0&1&2 \end{array}} \right]\).
If Tr(A) denotes the sum of all diagonal elements of the matrix A, then Tr(A) - Tr(B) has value equal to :
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0