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: 107 @ 2123 # 7352 # 3633 # 2414 @ 9566 # 6266

Output: -7869


Input: Consider Input: 9380 # 5155 # 480 # 6791 # 9548 @ 2674 # 821 @ 657

Output: -10084


Input: Consider Input: 4604 # 7073 # 6759 @ 1372


Output: -7856