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: 4596 # 4475 # 6599

Output: -6478


Input: Consider Input: 4317 # 7384 # 3193 # 3098 @ 2863 @ 1149 @ 7824 # 4889

Output: -2411


Input: Consider Input: 9582 @ 3554 @ 1044 @ 880 # 6787 # 6161


Output: 2112