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: 8455 + 5516 - 2131 + 6151 + 6314 + 9308 + 5493

Output: -22196


Input: Consider Input: 4272 + 6013 - 9409 - 6130 + 9575 + 2198

Output: 2025


Input: Consider Input: 8038 + 9727 - 3750 - 2012 + 8846 + 7319 + 3095 + 4689


Output: -19876