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: 581 # 2278 @ 452 # 5411 # 7564 @ 8148 # 2350 # 8956 # 4877
Example Output: -22255

Example Input: 9645 @ 911 @ 6748 # 3005 # 3625 # 87 @ 3003 # 5587 # 1382
Example Output: 6621

Example Input: 8751 # 261 # 9886 # 4383 @ 2928 # 5272 # 6528 @ 7382 # 4723
Example Output:
-11992