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: 9673 @ 7136 # 4171 # 8296 @ 655
Example Output: 4997

Example Input: 5031 # 649 # 8975 @ 1853 # 5257 # 1383
Example Output: -9380

Example Input: 7359 # 9102 # 6239 # 5795 @ 7847 @ 1682 @ 5344
Example Output:
1096