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: 3309 @ 2855 @ 8458 # 3671 # 4410 # 6229 # 4661 # 2777

Output: -7126


Input: Consider Input: 5885 @ 6086 # 2828 # 305 # 6536

Output: 2302


Input: Consider Input: 9110 @ 5993 @ 2255 # 2382 @ 4508 # 9189 # 9002


Output: 1293


