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]: 3923 # 9826 # 9066 # 9343 # 4675 @ 4896 # 8019 @ 4615 # 3491
[EX A]: -30986

[EX Q]: 9720 @ 6485 @ 1745 @ 728
[EX A]: 18678

[EX Q]: 5644 # 2923 @ 4185 @ 7918 @ 8213 @ 3976 # 7012 @ 1860
[EX A]:
21861