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: 5046 # 9480 # 3079 @ 8929 # 1334 # 6211 @ 3240 @ 3825

Output: 936


Input: Consider Input: 6775 @ 249 @ 1171 @ 3376 # 7127

Output: 4444


Input: Consider Input: 5839 # 3178 # 9458 @ 9520


Output: 2723