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: 5279 - 2949 - 9227 - 4200 - 3399 - 5680 - 9769 + 7051 + 2369

Output: 31083


Input: Consider Input: 4062 - 644 + 187 - 4501 + 1736 - 230

Output: 7514


Input: Consider Input: 6939 + 1181 + 3187 - 5428 + 5253 + 8306 + 7235 + 138 + 2167


Output: -15100