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.

4226 - 3951 + 2613
5564

3097 + 17 - 8842 + 4949 + 8377 + 425 - 7128 + 6500
-1201

918 - 3647 - 1050 + 8856 - 3400 + 9952 + 9779

-19572