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: 6729 # 1204 # 5514 # 8079
Example Output: -8068

Example Input: 6110 @ 5036 # 9621 @ 7662 # 3509 # 7697 # 1663 @ 9388
Example Output: 5706

Example Input: 2907 # 9242 # 8665 @ 529 # 8212 # 2070 @ 1486 # 2484 @ 9401
Example Output:
-16350

