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: 549 @ 2405 # 8368 @ 806 @ 5639
Example Output: 1031

Example Input: 3351 @ 1445 @ 5875 # 1267 # 4225 @ 4098 @ 3552
Example Output: 12829

Example Input: 2496 # 2912 @ 2185
Example Output:
1769