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: 6322 # 7953 # 5 @ 7093 @ 5659 @ 5045 # 904

Output: 15257


Input: Consider Input: 8050 # 8744 @ 5247 # 7761 # 8743

Output: -11951


Input: Consider Input: 4976 # 1873 @ 3716 # 1478 @ 6524 # 2417 # 5391


Output: 4057