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: 5610 - 3034 + 9312 + 7337 + 2731 + 8581 + 5926 - 2102 + 2137
Example Output: -25278

Example Input: 1420 - 1910 - 3500 + 9535 + 3807 - 5009 - 1271 - 3426
Example Output: 3194

Example Input: 5288 + 7865 - 7948 - 5240 + 8524 - 4794
Example Output:
6881