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.

Input: Consider Input: 9616 - 8145 + 562 + 3160 - 8906 - 360 + 9291 + 7609 + 460

Output: 5945


Input: Consider Input: 933 - 48 - 7218 - 7880 - 4299

Output: 20378


Input: Consider Input: 1872 + 8895 - 2933 + 8878 + 9944


Output: -22912