C222123232321333131133133313331333132313231322221233231333223231   >>    C22212323232133313113313331333133313231323132222123323133322323   <<    C222123232321333131133133313331333132313231322221233231333223233   >>      C222123232321333131133133313331333132313231322221233231333223232   >>