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: 4839 # 9558 @ 1236 # 8758 # 3209
Example Output: -15450

Example Input: 3309 @ 2855 @ 8458 # 3671 # 4410 # 6229 # 4661 # 2777
Example Output: -7126

Example Input: 604 @ 6355 # 2682 # 4321
Example Output:
-44