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

Output: 22911


Input: Consider Input: 1470 + 1395 + 3788 + 7517 + 2388 - 431 - 2393 + 4241 - 560

Output: -14475


Input: Consider Input: 4435 - 2264 + 8932 - 6658 - 9390 + 6801 + 1752 - 7727 + 4586


Output: 8403