$1\mathrm{.}1$ The tinyL language

tinyL is a simple expression language that allows assignments and basic I

$/$O operations.

The & operator is the bitwise AND operator and the $|$ is the bitwise OR operator. Here

are two examples of valid tinyL programs:

$?a$;$a=+2+25$;$\%a!$

$?a$;$a=|2$&$3|25$;$\%a!$