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: 463 @ 7844 # 9816
Example Output: -1509

Example Input: 634 # 6766 # 1458 # 4376 @ 9425
Example Output: -2541

Example Input: 8192 @ 5732 # 9342
Example Output:
4582