C111123313121111121111331333133313331333133313331122112323212231   >>    C11112331312111112111133133313331333133313331333112211232321223   <<    C111123313121111121111331333133313331333133313331122112323212233   >>      C111123313121111121111331333133313331333133313331122112323212232   >>