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: 4737 # 8536 @ 5633 # 1731 @ 3807 # 520 @ 1622
Example Output: 5012

Example Input: 8732 # 4760 @ 9372
Example Output: 13344

Example Input: 8604 @ 7668 # 8236 # 936 @ 7622 @ 2430 @ 5752 # 4832
Example Output:
18072