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: 5110 + 3408 + 3582

Output: -1880


Input: Consider Input: 6946 + 6834 - 1169 + 9756 + 2063 - 4750 - 425 + 1121 + 8155

Output: -14639


Input: Consider Input: 1700 + 2385 + 7127 + 5791 + 8786 + 6326 + 1332 + 6700 - 4957


Output: -31790