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: 1516 # 4681 # 225 # 3393 @ 1212 @ 367
Example Output: -5204

Example Input: 3164 # 160 @ 1567 # 8453 # 9293 @ 9371
Example Output: -3804

Example Input: 9428 @ 8043 # 3053 @ 8822 # 4836 @ 7554 # 8462 @ 1923 @ 990
Example Output:
20409