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: 4292 - 7663 + 6931 + 1332 + 5698 + 4887 - 9479 - 1571 - 6095

Output: 10252


Input: Consider Input: 4303 + 4581 + 3027 - 9269 + 3325

Output: 2639


Input: Consider Input: 8193 - 1420 - 2264 + 3735 - 3047 - 3288 - 1606


Output: 16083