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:
8513 - 7119 - 47
answer:
15679


question:
4854 - 3903 - 3601 - 6666 - 170 - 3411 - 1306
answer:
23911


question:
3394 - 2316 - 9713
answer:

15423


