C11111333133313232233133313331333133313331312111133133312111111213121   >>    C1111133313331323223313331333133313331333131211113313331211111121312   <<    C11111333133313232233133313331333133313331312111133133312111111213123   >>      C11111333133313232233133313331333133313331312111133133312111111213122   >>