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:
2862 - 964 + 1644
answer:
2182


question:
2036 + 7313 - 8908 - 1870 - 5159 + 5945 + 5006 + 635 + 5551
answer:
-6477


question:
8221 - 2903 - 7100
answer:

18224