use strict;
use warnings;

my @input_array = qw( N1 N2 N3  N6  N7      );
my @input_A     = qw( N1 N3 N11 N11 N10 N16 );
my @input_B     = qw( N3 N6 N2  N7  N16 N19 );

my %flags;
$flags{$_} |= 1 for @input_array;
$flags{$_} |= 2 for @input_A;
$flags{$_} |= 4 for @input_B;

my %primaryCCO;
for (keys %flags) {
	next unless $flags{$_} & 1;
	print "$_: only 1 input is PI\n" if $flags{$_} == 3;
	print "$_: this is a wire\n" if $flags{$_} == 5;
	if( $flags{$_} == 7 ) {
		$primaryCCO{$_} = [1,1];
		print "$_: CCO = ( @{$primaryCCO{$_}} )\n";
	}
}