In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.

Input: Consider Input: 6051 + 6310 + 7813 + 2282 - 7601 + 4598 - 1928 - 9696 - 6497

Output: 10770


Input: Consider Input: 4266 - 8914 - 9115 - 7595 - 3820 + 191 + 3199 - 4910

Output: 35230


Input: Consider Input: 8695 + 5631 + 349 - 5666 + 3480


Output: 4901