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: 6796 # 5118 @ 4061 @ 2573 # 7960 @ 5889 # 7812 @ 3174

Output: 1603


Input: Consider Input: 5249 @ 1204 # 3908 # 5196 @ 1711 @ 8089 # 8419 # 2865 @ 1478

Output: -2657


Input: Consider Input: 9299 @ 2634 @ 77 @ 1574 @ 8367 @ 6388 # 306


Output: 28033