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: 331 # 9967 @ 21 @ 480 # 3926 @ 8770 @ 5909 @ 6288 # 1226
Example Output: 6680

Example Input: 8422 @ 5670 # 5825 @ 3613
Example Output: 11880

Example Input: 1095 @ 2471 @ 4030
Example Output:
7596