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: 3055 - 3062 - 5311

Output: 11428


Input: Consider Input: 9403 + 6381 - 6599 - 2097 - 3046

Output: 14764


Input: Consider Input: 7845 - 853 - 1940 - 3885 + 9503 + 3167 + 6113 + 819 - 1102


Output: -3977