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.

1259 - 2367 + 9919 + 7196 + 4121
-17610

7525 + 263 - 1634 + 3644 + 6905 - 167
-1486

221 - 1127 + 1284 - 6667 - 8966 - 5691 - 1479 + 6922 + 9108

6837