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: 5758 + 9179 - 1765 - 4142 - 8736

Output: 11222


Input: Consider Input: 6091 - 9741 + 8943 + 4033 - 2984 + 4984 + 8503

Output: -7647


Input: Consider Input: 6903 - 7402 - 6247 - 209 - 8832 - 3543 + 8614 - 9239


Output: 33761