AddOn BYREF Accumulator

Write procedure AddOn(BYREF Total, BYVAL Amount) that adds Amount onto Total. Because Total is passed BYREF, the caller's variable must change.

The main program reads a starting total and how many amounts to add, then reads that many amounts, calling AddOn each time. Output the final total.

Input: Start, count, then that many integers. Output: The accumulated total.

Example:

Input:  10
        3
        4
        5
        6
Output: 25