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: 1799 - 6428 + 9525 - 4524 + 9186

Output: -5960


Input: Consider Input: 2113 - 9339 + 3752 + 8710 + 3541 + 3240 + 6148 + 2019

Output: -15958


Input: Consider Input: 405 - 6598 - 7106 + 6669 + 7109 + 9251 - 9161


Output: 241