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: 5945 + 1046 + 9187 + 929

Output: -5217


Input: Consider Input: 7266 - 5601 + 6292 - 3129 - 4781 - 6736 - 1566 - 7004

Output: 29791


Input: Consider Input: 7302 - 6632 - 419 - 9358 - 4390 + 638 - 1474


Output: 28937