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]: 6340 # 5642 @ 8051 # 3877 # 2824 # 3105 # 9957 @ 9874 # 6399
[EX A]: -7539

[EX Q]: 7720 @ 5171 # 6139 @ 480
[EX A]: 7232

[EX Q]: 3591 @ 5819 # 8713
[EX A]:
697