C111123313121111121111331333133313331333133313331122112323211121   >>    C11112331312111112111133133313331333133313331333112211232321112   <<    C111123313121111121111331333133313331333133313331122112323211123   >>      C111123313121111121111331333133313331333133313331122112323211122   >>