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:
3782 @ 4127 # 1265 # 1395 @ 2430 @ 6990 @ 8573 @ 8170

Ex Output:
31412

Ex Input:
4324 # 426 # 9171 # 980 @ 9454 @ 9720 # 7367 # 9266 # 1237

Ex Output:
-4949

Ex Input:
5406 # 4735 @ 9788 # 3945 # 8800 # 7494

Ex Output:
-9780