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: 7773 @ 3264 # 8041 @ 4068 # 5476 # 5946 # 8987 # 7719
Example Output: -21064

Example Input: 2285 @ 1970 @ 4720
Example Output: 8975

Example Input: 209 @ 6978 @ 1612 # 7499 # 7734 # 1198 # 983
Example Output:
-8615