a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 2.2 a b a a a b a b a a b x1 a a b a b a a a b a b a x1 a b a a a b a b a a b x1 a a b a b a x1 a b a a a b a b a a b x1 a x1 a b a a a b a b a a b x1 a b a b a x1 a b a a a b a b a a b x1 a a a b a b a x1 a b a a a b a b a a b x1 a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a x1 a b a a a b a b a a b x1 a b a a a b a b a x1 true a b a a a b a b a a b x1 a b a a a b a b a x1 a b a a a b a b a a b x1 a b a x1 a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a b a a a b a b a x1 a b a a a b a b a a b x1 a x1 a b a a a b a b a a b x1 a a b a b a x1 a b a a a b a b a a b x1 a a a b a b a x1 a b a a a b a b a a b x1 a b a b a x1 a b a a a b a b a a b x1 a a b a b a a a b a b a x1 true 2 1 a 1 1 0 0 0 1 0 0 b 1 1 1 1 0 1 0 1 a 1 0 0 1 1 1 0 0 a b a a a b a b a a b x1 a b a b a x1 a b a a a b a b a a b x1 a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a x1 a b a a a b a b a a b x1 a b a a a b a b a x1 a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a x1 a b a a a b a b a a b x1 a b a b a x1 a b a a a b a b a a b x1 a b a a a b a b a x1 a b a a a b a b a a b x1 a b a b a a a b a b a x1 a b a a a b a b a a b x1 a b a a b a b a a a b a b a x1 true Failed! NaTT certifiable-1.6