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: 8769 - 3041 - 6567 + 1136 + 3380 + 4191 + 2049 + 7794 - 4291
Example Output: 4118

Example Input: 7147 + 1234 - 7159 + 8304 - 934 + 3025 - 796 - 5291 - 2549
Example Output: 11313

Example Input: 532 - 8197 + 4278 - 8197 + 5500 + 6444
Example Output:
704