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: 6108 + 2133 + 8600

Output: -4625


Input: Consider Input: 799 + 9104 - 2060 - 779 + 5546 - 9608 + 4006 + 8557 - 3643

Output: -10324


Input: Consider Input: 4711 - 2224 + 959 - 6366 + 4106 - 8857 + 3363 - 6582


Output: 20312