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.

7149 - 7250 - 2026 - 4929 - 5525 + 1967 + 895 + 4245 - 720
20492

1592 + 7031 - 1902 + 5922 - 1351 + 8340 - 2032
-14416

7641 + 6657 + 380 - 124 + 5478 + 2935 + 4150

-11835