\[\boxed{\mathbf{217}.}\]
\[A = \left\{ x:x^{2} - 6x + 9 \leq 0 \right\};\ \]
\[\ B = \left\{ x:|x| \leq 1;\ \ x \in Z \right\}.\]
\[x^{2} - 6x + 9 \leq 0\]
\[(x - 3)^{2} \leq 0\]
\[x = 3\]
\[A = \left\{ 3 \right\}.\]
\[|x| \leq 1\]
\[- 1 \leq x \leq 1\]
\[B = \left\{ - 1;0;1 \right\}.\]
\[A \cup B = \left\{ - 1;0;1;3 \right\}.\]