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: 3477 + 8970 + 2278 - 9906 - 106 - 208 - 1334

Output: 3783


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

Output: 10770


Input: Consider Input: 1845 + 5509 - 49 - 9196 + 67 - 8583 + 6702 - 5053 + 3219


Output: 9229