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: 1721 # 7193 # 7392 # 8999 # 7847 @ 5571 @ 4439 @ 7158 # 6030

Output: -18572


Input: Consider Input: 5425 @ 6980 # 4301 @ 4410 # 7405 # 552 @ 4556 # 8531 # 4935

Output: -4353


Input: Consider Input: 8053 @ 5212 @ 1457 # 8789 @ 9281 # 9300 # 1634


Output: 4280


