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: 6199 # 9863 # 8197 # 3975 @ 1000 @ 740 @ 3216 @ 2122 # 4226
Example Output: -12984

Example Input: 9817 @ 5042 # 1724 @ 799 @ 685
Example Output: 14619

Example Input: 8654 @ 1912 # 849 @ 6248
Example Output:
15965