$(6$ points$)$ Consider the following code snippet. Is it correct? If not, why? If yes, what is the output?

$x=1$

$x=2^{**}(x+1)$

$pr{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x)$

$pr{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x1)$

$pr{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(x+1)$