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

Example Input: 5211 # 3266 @ 3042 @ 254 # 7823 @ 4298 # 8042 # 1629 # 6738
Example Output: -14693

Example Input: 4867 # 7162 @ 1616 # 596 # 7845 @ 9594 # 3650 @ 6833
Example Output: 3657

Example Input: 2212 # 228 # 1 @ 5059 # 6397
Example Output:
645