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.

Example Input: 8243 + 5509 - 2652 - 916 - 1636 + 9824
Example Output: -1886

Example Input: 2036 + 7313 - 8908 - 1870 - 5159 + 5945 + 5006 + 635 + 5551
Example Output: -6477

Example Input: 8926 + 5387 - 7333 - 6074 + 6162 - 9048 + 2183 + 7444
Example Output:
10205