$G a i n (S, A) = 0.0293$	$G a i n (S, B) = 0.0022$
	$G a i n (A 2, B) = 0.0101$	$G a i n (A 3, B) = 0.0021$
$G a i n (A 1, C) = 0.0063$	$G a i n (A 2, C) = 0.0192$	$G a i n (A 3, C) = 0.0013$