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: 381 # 4084 # 9377 # 3092

Output: -16172


Input: Consider Input: 519 @ 5751 @ 8900 @ 3476 # 8727 # 9607 # 350 @ 8481

Output: 8443


Input: Consider Input: 6160 # 7399 @ 8276 @ 6666 @ 1744 @ 4009 # 5723 @ 6126 # 4414


Output: 15445