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: 9050 + 7188 + 3589 + 8762 + 268 + 1995 + 6080 - 4900
Example Output: -13932

Example Input: 9990 - 8613 - 152 + 4529
Example Output: 14226

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