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]: 2678 # 5467 @ 8355 # 3124 # 5654
[EX A]: -3212

[EX Q]: 9786 @ 7240 # 8099 @ 100 @ 4573 @ 5982 @ 9270 @ 9911 # 8249
[EX A]: 30514

[EX Q]: 1767 @ 7166 @ 1543 @ 1185 @ 9966 # 6628
[EX A]:
14999