Return early from function

As we have seen in a previous exercise, a return statement blocks any code following the statement from being executed. But, this is only true if the return statement actually runs. Using an if...statement, we can prevent a code from being executed if a condition is not met.
In the code below we use this pattern to stop a function early if the parameter num is smaller than 5.
Adjust the code so that the value of result is 25.