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: 524 @ 1123 # 5900 # 4128 # 1486 # 9545

Output: -19412


Input: Consider Input: 2994 # 4380 @ 6720

Output: 5334


Input: Consider Input: 1740 # 3623 # 6235 @ 54 @ 9528 # 2319 @ 8128 # 8063


Output: -790