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: 7371 - 9025 + 8352 - 9201 - 9297 - 3561 + 8576
Example Output: 21527

Example Input: 2458 + 4195 - 6382
Example Output: 4645

Example Input: 799 + 1657 - 7592 - 4343 + 3651 + 6429 - 9377
Example Output:
10374