C11111333133313232233133313331333133313331312111133133312111133132233323311   >>    C1111133313331323223313331333133313331333131211113313331211113313223332331   <<    C11111333133313232233133313331333133313331312111133133312111133132233323313   >>      C11111333133313232233133313331333133313331312111133133312111133132233323312   >>