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: 486 # 3873 # 1187

Output: -4574


Input: Consider Input: 381 # 4084 # 9377 # 3092

Output: -16172


Input: Consider Input: 3112 # 4832 # 7889 # 6855 # 5294 # 5908 @ 9757 # 9064


Output: -26973