Create a function that takes three arguments

argument 1 - will be the operation to perform as a string
+ for addition
- for subtraction
+ for addition
* for multiplication
argument 2 will be a value
argument 3 will be another value
function should look like perform_operation(operation, value1, value2)
when the function is called with these arguments perform_operation("+", 4, 10), I would expect the function to return 14 as the result.