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: 9954 @ 4250 # 4835 @ 6737 # 8434 # 6461 @ 1008
Example Output: 2219

Example Input: 1744 @ 4800 # 4688 @ 2637 # 1656 # 4459 # 9618 @ 4120
Example Output: -7120

Example Input: 1300 # 8702 @ 364 @ 7126 # 6718 @ 5977 @ 5604 # 4177 @ 7181
Example Output:
7955