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: 6050 # 5266 # 3005
Example Output: -2221

Example Input: 2020 @ 862 # 5780
Example Output: -2898

Example Input: 3968 @ 5044 @ 8713
Example Output:
17725