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]: 331 # 9967 @ 21 @ 480 # 3926 @ 8770 @ 5909 @ 6288 # 1226
[A]: 6680


[Q]: 2932 # 4372 # 9818 # 101 # 5357 # 8354 @ 7479
[A]: -17591


[Q]: 6943 @ 8653 @ 2004 # 5443 @ 9178 # 2157 # 6982
[A]:
12196