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: 452 # 5631 # 8307 # 1886 @ 4631 @ 1695 @ 4411 # 769
Example Output: -5404

Example Input: 2863 @ 9899 # 2358
Example Output: 10404

Example Input: 7320 @ 9337 # 31 @ 8850 @ 4804 @ 230 # 9287 # 4572
Example Output:
16651