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: 497 # 7667 # 405 # 5403 @ 8444 @ 5031 # 1411 # 2392
Example Output: -3306

Example Input: 8915 @ 8709 # 6716 @ 4326
Example Output: 15234

Example Input: 1869 @ 8535 # 7980 # 1543 @ 2450 # 3287 # 3212
Example Output:
-3168