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: 6063 + 9874 + 5939 - 5013 + 791

Output: -5528


Input: Consider Input: 2348 - 6075 + 2149 - 1926 - 9532 - 9774 + 2760 - 6500 + 8335

Output: 22911


Input: Consider Input: 6504 + 9004 + 1933 - 9793 - 8800 + 1839 + 5331 - 3056 - 7052


Output: 17098