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: 8838 + 1241 - 4918 - 8353 - 4691 - 5880

Output: 31439

Input: Consider Input: 1783 + 1887 + 6517 - 3342 + 4406 + 8123 + 5394 - 5058 + 8527

Output: -24671

Input: Consider Input: 2833 - 3857 + 8897 - 8992 - 6091 - 3757 - 1228 + 6039 - 7973
Output: 19795