a b a a a a a x1 a a a a a a b a a a a b x1 2.2 a b a a a a a x1 a a a a a b a a a a b x1 a b a a a a a x1 a b a a a a b x1 a b a a a a a x1 a a b x1 a b a a a a a x1 a a a a b x1 a b a a a a a x1 a b x1 a b a a a a a x1 a a b a a a a b x1 a b a a a a a x1 a a a a b a a a a b x1 a b a a a a a x1 a a a a a a b a a a a b x1 a b a a a a a x1 a a a b x1 a b a a a a a x1 a a a b a a a a b x1 true a b a a a a a x1 a a a b a a a a b x1 a b a a a a a x1 a a a b x1 a b a a a a a x1 a a a a a a b a a a a b x1 a b a a a a a x1 a a a a b a a a a b x1 a b a a a a a x1 a a b x1 a b a a a a a x1 a b a a a a b x1 a b a a a a a x1 a a b a a a a b x1 a b a a a a a x1 a b x1 a b a a a a a x1 a a a a b x1 a b a a a a a x1 a a a a a b a a a a b x1 true a 1 10451 b 1 10452 a 1 1 0 a b a a a a a x1 a b x1 a b a a a a a x1 a b a a a a b x1 a b a a a a a x1 a a a a a a b a a a a b x1 a b a a a a a x1 a b x1 a b a a a a a x1 a b a a a a b x1 true Failed! NaTT certifiable-1.6