C111123313331323113313331333133313331323132333133313331322133313132231   >>    C11112331333132311331333133313331333132313233313331333132213331313223   <<    C111123313331323113313331333133313331323132333133313331322133313132233   >>      C111123313331323113313331333133313331323132333133313331322133313132232   >>