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: 1799 - 6428 + 9525 - 4524 + 9186
Example Output: -5960

Example Input: 496 + 5072 + 6259 + 1493 + 4824 + 2052 + 4751 - 8038
Example Output: -15917

Example Input: 3324 + 8372 + 1806 - 4093 + 5072 + 4492 - 3843
Example Output:
-8482