C11111333133313232233133313331333132313331333133313123231323221   >>    C1111133313331323223313331333133313231333133313331312323132322   <<    C11111333133313232233133313331333132313331333133313123231323223   >>      C11111333133313232233133313331333132313331333133313123231323222   >>