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: 808 # 5395 # 5187 @ 8140 @ 2751 @ 1624 # 2083 @ 6224 # 8604

Output: -1722


Input: Consider Input: 1614 @ 5794 # 2578

Output: 4830


Input: Consider Input: 1363 # 4739 @ 1955 @ 3672 # 8777 @ 8885


Output: 2359