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: 5939 - 673 - 8282

Output: 14894


Input: Consider Input: 344 + 4107 + 9401 + 4490 - 5191 - 1753 - 5869 + 8385 - 7325

Output: -5901


Input: Consider Input: 8247 - 6987 - 8915 - 9962


Output: 34111