C11111333133313232233133313331333133313231333133313331121133133313223113121   >>    C1111133313331323223313331333133313331323133313331333112113313331322311312   <<    C11111333133313232233133313331333133313231333133313331121133133313223113123   >>      C11111333133313232233133313331333133313231333133313331121133133313223113122   >>