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: 5360 + 7507 - 3329 + 6345 - 9328 + 3114

Output: 1051


Input: Consider Input: 4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894

Output: -989


Input: Consider Input: 2536 + 2780 - 186 + 7454 + 2154 - 3130 + 482 + 3476


Output: -10494