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: 2036 + 7313 - 8908 - 1870 - 5159 + 5945 + 5006 + 635 + 5551

Output: -6477


Input: Consider Input: 555 + 1174 + 4465 + 6452 + 3211 + 2960 - 856 + 4997 - 9930

Output: -11918


Input: Consider Input: 1482 + 2142 - 325 + 6348 + 9650 + 8031 + 9958 - 5770


Output: -28552