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: 6267 @ 3304 @ 9078 @ 9734 # 2947 # 4223 @ 4824 # 3116

Output: 22921


Input: Consider Input: 8157 # 6333 @ 7928

Output: 9752


Input: Consider Input: 1108 # 373 @ 2508 @ 8824 # 1209 # 1296 # 5049 # 2633 @ 1698


Output: 3578