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: 610 # 7967 # 8700 # 5966 @ 4310 @ 9963 # 8525

Output: -16275


Input: Consider Input: 4470 @ 7285 # 4583 @ 9451 # 3236 # 3108 # 2875

Output: 7404


Input: Consider Input: 6918 # 2015 @ 9632 # 5227 # 4830 @ 2115


Output: 6593