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:
3367 # 4567 @ 8786 @ 9643 @ 105 # 6364 @ 9695 # 2387 @ 8798

Ex Output:
27076


Ex Input:
5175 # 1386 # 5328 # 898 @ 5361 # 376 @ 1286 @ 861

Ex Output:
4695


Ex Input:
2058 @ 4185 @ 9020 # 7000 # 118 @ 2917 # 4663

Ex Output:

6399