Instructions: 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: 437 - 869 + 9993 + 2713 + 8281 - 5183 - 3998 + 2114 + 3641
Output:
-16255