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: 3249 @ 313 @ 7029 @ 5721 @ 7626

Output: 23938


Input: Consider Input: 9084 # 8139 @ 4937

Output: 5882


Input: Consider Input: 2038 @ 6139 @ 53 # 9898 # 1603 @ 984 # 4666 @ 3151 # 6204


Output: -10006