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:
7163 + 3916 + 4926 + 2532 - 2743 - 5389 + 7290
answer:
-3369


question:
6492 - 3901 + 3666 + 9196 - 3917 - 133
answer:
1581


question:
6961 - 668 + 3136 - 8399 + 3361 - 155 + 1173
answer:

8513