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.

[EX Q]: 4515 - 2156 - 8427 - 2175
[EX A]: 17273

[EX Q]: 1470 + 1395 + 3788 + 7517 + 2388 - 431 - 2393 + 4241 - 560
[EX A]: -14475

[EX Q]: 1178 - 9949 + 9193 - 6209
[EX A]:
8143