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: 2318 + 1498 - 953 + 3290 + 1371 + 6933 + 7553 + 7283 + 889
Example Output: -25546

Example Input: 5161 + 8791 + 9352 + 7272 + 935 + 8632 + 1201
Example Output: -31022

Example Input: 1731 - 9932 - 4056 - 2303
Example Output:
18022