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: 473 # 2568 @ 9771 # 2525 @ 3277 @ 261 # 8230 @ 6021
Example Output: 6480

Example Input: 9466 # 395 @ 5036 # 8315 @ 1723
Example Output: 7515

Example Input: 5806 # 3876 # 963 @ 1876 # 3233 @ 3527 @ 6012 @ 2124
Example Output:
11273