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: 2475 # 126 @ 138 # 2303 # 5327 # 6412 # 9849 # 8474 # 6460

Output: -36338


Input: Consider Input: 6467 # 8145 # 9388 # 9232

Output: -20298


Input: Consider Input: 7875 # 3560 @ 2679


Output: 6994