instruction:
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.
question:
1815 - 3167 - 773
answer:
5755


question:
5634 - 7997 + 8248 + 1465 - 3986
answer:
7904


question:
1619 - 1267 - 7802 - 1663 + 4919 + 4222 + 4132
answer:

-922