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: 3074 @ 9793 # 6587 @ 1399
Example Output: 7679

Example Input: 8932 # 2337 @ 825 # 8463 @ 528
Example Output: -515

Example Input: 8305 @ 3990 @ 1760 @ 9298 @ 8262
Example Output:
31615