Read two floating point inputs, $x$ and $y,$ from the console. The inputs will be in inch units. Convert $x,y$ to meters.

Compute arcos $($arg$).($Hint: use the math library where the arcos function is called acos$)$ arg$=y$ divided by the sum of $x$ and $y.$

Print the result in degrees or an error if arg has an invalid value.

Don't forget to document the code.