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: 7252 # 8553 # 4853 @ 6748 # 3750

Output: -3156


Input: Consider Input: 2806 # 6120 @ 8567 @ 1946 @ 8985 # 9834 # 368 # 454 @ 5455

Output: 10983


Input: Consider Input: 5495 # 7575 @ 9675 # 3486 # 9879


Output: -5770