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:
1192 # 5752 # 5907 # 2119 # 9792 @ 917 @ 8428 # 6072 @ 592

Ex Output:
-18513


Ex Input:
4284 # 8233 @ 2781 # 2769 # 5560 @ 635 # 1706 @ 1965 @ 6794

Ex Output:
-1809


Ex Input:
3814 # 4297 @ 5724 # 9191 # 4800 # 8065 # 5485 @ 6264 # 9111

Ex Output:

-25147


