include Math
gets.to_i.times{
    d,x,t = gets.split.map(&:to_i)
    if t == 0
            puts "ZETUBOU"
    end
    if d == 1
        puts "AC"
    elsif (d - 2) * log2(x + 1) > log2(t)
        puts "ZETUBOU"
    elsif (d - 1) * log2(x + 2) <= log2(t + 1)
        puts "AC"
    else
        sum = 0
        ans = "AC"
        (x+1).downto(1){|n|
            sum += n ** (d - 2)
            if sum > t
                ans = "ZETUBOU"
                break
            end
            }
        puts ans
    end
    }