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: 4844 # 7776 # 6204 # 1027 # 4447 # 7998 # 6045 @ 8611 @ 2765

Output: -17277


Input: Consider Input: 1837 @ 4842 # 1682 @ 5953

Output: 10950


Input: Consider Input: 2323 @ 4567 @ 2582 # 1474


Output: 7998