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: 6942 @ 1857 @ 1508 @ 3059 # 6727
Example Output: 6639

Example Input: 1949 @ 526 @ 1777 @ 8065 @ 2790 # 1800 # 486 @ 229 @ 7738
Example Output: 20788

Example Input: 5969 # 5917 # 8188 # 5842 # 6176 # 7195 @ 7550
Example Output:
-19799