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: 8782 @ 1837 # 6954

Output: 3665


Input: Consider Input: 2738 # 5562 @ 4529 @ 5438 @ 1799

Output: 8942


Input: Consider Input: 7367 @ 7384 @ 5610 # 1723 @ 8228 # 9068 # 800 @ 5084 @ 2717


Output: 24799