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: 4224 + 9155 + 116 - 5148 - 7166 - 7397 - 3883 - 2139

Output: 20686


Input: Consider Input: 84 - 4898 - 2883 + 5111 - 7812 - 5830 + 3330 + 8500 + 6754

Output: -2188


Input: Consider Input: 1072 + 953 + 8738 + 9323 - 4041 + 6335 - 2033 + 2222


Output: -20425