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: 136 - 3238 + 3781 - 6552 - 4884 + 5366 - 657

Output: 6320


Input: Consider Input: 5316 + 506 - 8402

Output: 13212


Input: Consider Input: 3002 - 7124 - 4854 - 4318 - 6460 + 337 + 8796 + 3336 + 8784


Output: 4505