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

8769 @ 9595 # 7775 # 3412 # 7 @ 4689 # 4368
7491

8643 @ 7199 @ 504 # 8068 # 8187 # 1584 @ 6422
4929

2020 @ 8125 # 252 # 2790 # 9183 @ 3123 # 7282 # 5115 # 1943

-13297