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: 2342 # 5338 @ 345 @ 9010 @ 5234 @ 9613
Example Output: 21206

Example Input: 6733 # 361 @ 8396 @ 7920 @ 7915 # 1370 @ 5576 # 1321 @ 343
Example Output: 33831

Example Input: 9072 @ 323 # 8128
Example Output:
1267