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

Q: 2186 # 2436 # 4269 # 2175 @ 4101 # 2723 @ 6192 # 7530

A: -6654
****
Q: 5235 @ 3917 @ 4902 @ 3831 # 6517

A: 11368
****
Q: 7181 # 7687 # 1792 @ 1871

A:
-427
****