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:
1231 + 6657 - 8263
answer:
2837


question:
9990 - 8613 - 152 + 4529
answer:
14226


question:
6312 + 1446 - 1616 + 6758 - 9137 + 6041
answer:

2820