NO a c h h b b a a f a b 2.1 f h h b f a a 1 1 2 f a b f h h b b a 1 h h b b a a f a 1 a c f c f h h b f a a 1 1 2 f a b f h h b b a 1 h h b b a a f a f a b b b 0 c 0 f 1 1 c 0 3 b 0 2 f 1 1 ACP 0.72