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: 2994 # 4380 @ 6720
Example Output: 5334

Example Input: 2919 # 2741 @ 497 @ 5230 @ 5250 @ 1797 # 4567 @ 8995 @ 6960
Example Output: 24340

Example Input: 2918 # 6320 @ 4809 @ 3662 @ 1519
Example Output:
6588