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

Output: 16096

Input: Consider Input: 9616 - 8145 + 562 + 3160 - 8906 - 360 + 9291 + 7609 + 460

Output: 5945

Input: Consider Input: 2585 - 2941 - 6448 + 7504 - 8175 + 6831
Output: 5814