C111123313331323113313331333133313331323132333133313331313223231   >>    C11112331333132311331333133313331333132313233313331333131322323   <<    C111123313331323113313331333133313331323132333133313331313223233   >>      C111123313331323113313331333133313331323132333133313331313223232   >>