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:
3709 + 206 - 4363 + 3129 + 2506
answer:
2231


question:
5474 + 1234 - 4461 - 3865 + 7635 + 830 + 5965 - 7856 + 523
answer:
5469


question:
2856 - 7283 - 2730 - 1423 - 5897 - 8854 - 7147
answer:

36190