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: 2605 - 3453 + 5543 + 2400 + 8799 + 3298 + 4981 + 9739 - 178

Output: -28524


Input: Consider Input: 6091 - 9741 + 8943 + 4033 - 2984 + 4984 + 8503

Output: -7647


Input: Consider Input: 6178 - 4102 + 9082 - 495 + 632 + 6274 + 5652 - 9932 + 2072


Output: -3005