class Solver def initialize @fac = [0]*1600 @fac[0] = 1 for i in 1..1500 @fac[i]=i*@fac[i-1] end end def comb(n,k) @fac[n]/@fac[k]/@fac[n-k] end def run gets.to_i.times do d,x,t=gets.split.map(&:to_i) puts comb(x+d-1,d-1) <= t ? "AC" : "ZETUBOU" end end end Solver.new.run