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

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

2307 # 9363 @ 4926 @ 5635
3505

4350 # 9254 @ 7442 # 3236 # 9250 @ 5966 @ 5283 # 3543 @ 1819

-423