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

Example Input: 4767 # 4944 # 4202 @ 2582
Example Output: -1797

Example Input: 5571 @ 5729 # 6405 # 526 # 1330
Example Output: 3039

Example Input: 3923 # 9826 # 9066 # 9343 # 4675 @ 4896 # 8019 @ 4615 # 3491
Example Output:
-30986