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: 9713 + 8053 - 1782 + 6126 + 5918 + 968 - 2071 - 879 + 558

Output: -7178


Input: Consider Input: 3229 + 3176 - 8009 + 6079 - 8090 + 5706 - 3416

Output: 7783


Input: Consider Input: 6241 + 460 + 963 + 3975 + 9628 - 6670 - 1914 - 9984 + 6598


Output: 3185