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: 2020 @ 862 # 5780

A: -2898
****
Q: 5265 @ 8995 # 365 # 6720 @ 438 # 9846 # 1190 @ 1943 # 9835

A: -11315
****
Q: 7978 # 9907 # 6447 @ 5619 # 5206 # 7622 @ 5437 # 5807

A:
-15955
****