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: 4867 # 7162 @ 1616 # 596 # 7845 @ 9594 # 3650 @ 6833

Output: 3657


Input: Consider Input: 6514 # 8296 # 4939 # 5783 @ 1077 @ 3237 @ 5941 # 7665 # 2408

Output: -12322


Input: Consider Input: 3530 @ 7884 @ 2852 @ 4267 # 9661 @ 3754 @ 8241 # 8984 # 5804


Output: 6079