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: 8849 + 869 + 880 + 8843 + 8122
Example Output: -9865

Example Input: 8053 - 8275 + 3672 - 7233 + 8748 - 1270 - 6997 - 7566 + 5689
Example Output: 21285

Example Input: 6586 - 4144 - 39 - 7160 + 8998 + 7548 + 6521 - 3393 - 2292
Example Output:
547