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: 4089 @ 276 @ 7408 # 9945 @ 4656

Output: 6484


Input: Consider Input: 7217 @ 2604 @ 9974 @ 8133 @ 8987 # 6381 # 7662

Output: 22872


Input: Consider Input: 1045 @ 8039 # 451 @ 1560 # 5734 # 8654 @ 7206 @ 4053


Output: 7064