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: 445 # 5783 # 3236 # 9634 # 2299 # 2757 @ 3895 @ 5353 # 5757

Output: -19773


Input: Consider Input: 7211 # 614 @ 1584 # 4857 # 1495 # 1821 # 2219

Output: -2211


Input: Consider Input: 7519 @ 3113 # 7523 # 4638


Output: -1529


