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: 1887 - 5213 + 516 - 4107 - 7681 - 125 - 1788 + 124 - 1460

Output: 21621

Input: Consider Input: 5753 - 4358 + 6312 + 2406 + 5334 - 4718 + 6262

Output: -5485

Input: Consider Input: 3865 + 6629 + 1584 + 320 + 2927 - 7547 - 9967
Output: 9919