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


question:
826 - 6501 - 223 + 9761 - 8863
answer:
6652


question:
9613 - 2420 + 7705 - 7680
answer:

12008