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

Ex Input:
6199 # 9863 # 8197 # 3975 @ 1000 @ 740 @ 3216 @ 2122 # 4226

Ex Output:
-12984

Ex Input:
5513 @ 1221 @ 8910 @ 8422

Ex Output:
24066

Ex Input:
2121 # 7810 # 6909 @ 5584 # 6472 @ 2283

Ex Output:
-11203