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: 2226 - 7329 - 3547

Output: 13102


Input: Consider Input: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314

Output: -4692


Input: Consider Input: 8625 - 2240 - 8544 + 9905 + 7588 + 9161 + 3204 + 4214 - 1175


Output: -13488