my $masked = $_ & "\x00\xFF \x00\xFF \x00\xFF \x00\xFF \x00\xFF";
(  $masked eq "\x00D \x00D \x00D \x00D \x00D"
|| $masked eq "\x00S \x00S \x00S \x00S \x00S"
|| $masked eq "\x00C \x00C \x00C \x00C \x00C"
|| $masked eq "\x00H \x00H \x00H \x00H \x00H"
)