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.

Example Input: 4117 - 3380 - 4784
Example Output: 12281

Example Input: 8513 - 7119 - 47
Example Output: 15679

Example Input: 8503 - 4096 + 6612 - 4331 - 2387 + 6864 - 7606 - 6310
Example Output:
19757