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: 4130 @ 6495 # 3973
Example Output: 6652

Example Input: 8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
Example Output: 4929

Example Input: 7903 # 2202 @ 4254
Example Output:
9955