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: 4844 # 7776 # 6204 # 1027 # 4447 # 7998 # 6045 @ 8611 @ 2765
Example Output: -17277

Example Input: 7852 @ 3930 # 9928 @ 8730 # 4813 @ 5851 @ 3445 # 8406 @ 8518
Example Output:
15179