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: 2349 - 9730 - 8231 + 6983 + 9097 + 6965 - 2760

Output: 25


Input: Consider Input: 3337 + 9906 + 9733 - 853 + 5075 - 2064 + 9450 - 3886

Output: -24024


Input: Consider Input: 1841 - 390 + 230 + 6018 - 1396 - 4054 + 4558 + 5959


Output: -9084