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:
5177 @ 9496 # 845 @ 5246 @ 9906 @ 5654 @ 1721 @ 5303

Ex Output:
41658


Ex Input:
8625 # 2240 # 8544 @ 9905 @ 7588 @ 9161 @ 3204 @ 4214 # 1175

Ex Output:
30738


Ex Input:
3796 @ 42 # 9173 @ 3820 # 4443 @ 233 @ 8951

Ex Output:

3226