T = gets.to_s.to_i
T.times do
    n = gets.to_s.to_i
    a = gets.to_s.split.map { |s| s.to_i }
    
    if (0 ... n * 2).all? { |i| a[i] == i % n + 1 }
        puts "Yes"
        next
    end
    
    i = a.rindex(1)
    xs = a[0 .. i]
    ys = a[i + 1 ..]
    if xs.reverse == xs and ys.reverse == ys
        puts "Yes"
        next
    end
    
    puts "No"
end