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: 9487 # 9520 @ 4047

Output: 4014


Input: Consider Input: 4089 @ 276 @ 7408 # 9945 @ 4656

Output: 6484


Input: Consider Input: 5527 # 1448 # 8473 @ 9368 @ 6736 @ 3360 @ 8564 @ 2705 @ 6958


Output: 33297