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: 7312 - 1598 - 5813 - 8994 + 9174 - 4767 + 4076

Output: 15234


Input: Consider Input: 5610 - 3034 + 9312 + 7337 + 2731 + 8581 + 5926 - 2102 + 2137

Output: -25278


Input: Consider Input: 8007 - 1921 + 7346 - 8016 - 2016 + 1462 + 1132 + 8321 + 9627


Output: -7928