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.

1678 - 831 + 1988 - 3248 - 7672 + 8515 + 5236 - 2764 - 6078
6532

5162 - 4324 - 8160 + 9296 - 1881
10231

1859 - 1484 + 1363 - 7682 + 7974 + 3268 + 3927

-5507