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: 9751 - 3599 + 7441 - 2176 + 2662 + 9430 + 8207 + 5927 - 8529
Example Output: -9612

Example Input: 8769 - 3041 - 6567 + 1136 + 3380 + 4191 + 2049 + 7794 - 4291
Example Output: 4118

Example Input: 16 + 9760 - 584 + 2866 + 1579 + 3221 - 7784
Example Output:
-9042