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:
1229 - 4354 + 912 - 1766
answer:
6437


question:
1780 - 963 - 3786 - 8938 + 5127 + 4125 + 8911 + 9677
answer:
-12373


question:
9567 + 9924 + 1845 + 779 - 7643 - 7805 - 611
answer:

13078