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.

42 + 6517 - 146 + 304 - 4759 + 148 - 3822
1800

4839 - 962 + 7552
-1751

7048 + 7250 - 1773 + 2795 - 1309 - 9051

9136