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.

4839 - 962 + 7552
-1751

9060 + 6995 - 9090 + 8450 - 5246 + 5012
2939

237 + 4380 - 9412 + 5008 + 2604 - 744 + 6323 + 2293 + 2562

-12777