What is the ending value of z$?$

Flowchart has $3$ variables $($integer x$,$ integer y$,$ integer z$)$ and $5$ nodes. Node $1$ is the start node and points to node $2.$ Node $2$ code: x $=0$ Node $2$ points to node $3.$ Node $3$ code: y $=3$ Node $3$ points to node $4.$ Node $4$ code: z $=$ RaiseToPower$($x $+2,$ y$)$ Node $4$ points to node $5.$ Node $5$ is the end node.