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

Input: Consider Input: 4364 @ 4363 # 5655 @ 5991 @ 3879 @ 2303 # 3321 @ 8300 @ 6059

Output: 26283


Input: Consider Input: 5406 @ 9263 @ 7443 @ 6591 # 7496 @ 2721 # 7867

Output: 16061


Input: Consider Input: 4405 # 8294 # 3919 @ 3114 # 9307 @ 7626 @ 6128 @ 2451


Output: 2204