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

[EX Q]: 1262 # 4309 # 2911
[EX A]: -5958

[EX Q]: 6904 # 1007 @ 9690 @ 9967 @ 9620 @ 4765
[EX A]: 39939

[EX Q]: 5637 @ 9460 @ 3198
[EX A]:
18295