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: 5806 - 3876 - 963 + 1876 - 3233 + 3527 + 6012 + 2124

Output: 339

Input: Consider Input: 2297 + 4208 + 9691 - 6995 + 738 + 1245 - 7806

Output: 1216

Input: Consider Input: 5944 - 2615 + 256 - 7236 + 5856 + 7830 + 401 - 5268
Output: 6720