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: 86 - 2166 - 8519 - 7184 - 362 - 2203 + 1579 - 1133 + 3978
Example Output: 16096

Example Input: 1808 - 5352 - 8697 + 5058 + 8777 + 8089 - 9688 + 9784
Example Output: -6163

Example Input: 6273 - 5844 + 9741 - 9108 - 1045 - 9296 - 7004 + 8545
Example Output:
20284