a b c x1 c b a x1 a c x1 a a d a x1 d a b x1 b a d x1 d a c x1 b c c x1 2.2 a c x1 a d a x1 d a b x1 d x1 a b c x1 a x1 d a b x1 a d x1 a c x1 d a x1 a c x1 a a d a x1 a c x1 a x1 true a c x1 a x1 a c x1 a a d a x1 a c x1 d a x1 d a b x1 d x1 d a b x1 a d x1 a b c x1 a x1 a c x1 a d a x1 true a 1 1 0 d 1 1 1 b 1 1 0 c 1 1 1 d 1 1 1 a 1 1 0 a c x1 a d a x1 d a b x1 a d x1 d a b x1 d x1 a c x1 d a x1 a c x1 a a d a x1 d a c x1 b c c x1 a b c x1 c b a x1 d a b x1 b a d x1 a c x1 a a d a x1 d a b x1 d x1 d a b x1 a d x1 a c x1 d a x1 a c x1 a d a x1 a c x1 a a d a x1 true a 1 10453 d 1 1 b 1 0 c 1 1 10453 d 1 2 a 1 1 0 a c x1 a a d a x1 d a b x1 d x1 d a c x1 b c c x1 a b c x1 c b a x1 d a b x1 b a d x1 a c x1 a a d a x1 d a b x1 d x1 true a 1 1 0 d 1 0 b 1 1 1 c 1 0 d 1 1 0 a 1 0 a c x1 a a d a x1 true Failed! NaTT certifiable-1.6