In this task you will be given an arithmetic operation and you have to find its answer. The operators '+' and '-' have been replaced with new symbols. Specifically, '+' has been replaced with the symbol '@' and '-' with the symbol '#'. You need to perform the operations in the given equation return the answer

Input: Consider Input: 9549 @ 21 # 6714 # 2406 # 2527 # 8527 @ 1769

Output: -8835

Input: Consider Input: 6120 # 9271 # 7167 @ 6916 # 2510 @ 7854 # 7909 # 1960 # 3775

Output: -11702

Input: Consider Input: 2901 @ 1549 @ 6493 @ 3253 # 6518 @ 8735 # 5847 @ 365 @ 6064
Output: 16995