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: 6055 - 7226 + 1875 + 7504 - 1238 - 4445 + 412 - 5560

Output: 14733


Input: Consider Input: 3915 + 4904 + 4887 + 7162 - 3798 + 233 + 1101 - 7758 - 4627

Output: 1811


Input: Consider Input: 6763 - 8006 - 6381 - 8852 + 6218 + 3788 + 7296


Output: 12700