if (exists $identifier{$pins1}) {
    if ( ($w1 == $identifier{$pins1}{'w2'}) && ($h1 <= $identifier{$pins1}{'h2'}) ) { 
    my $start = 1;
        }
    else {
        my $start = 0;
        }
    } else {
        my $start = 0;
    }
    printf $output "$wline";
    next if (my $start == 0);