C11111333133313232233133313331333133313331312111112113313223332311   >>    C1111133313331323223313331333133313331333131211111211331322333231   <<    C11111333133313232233133313331333133313331312111112113313223332313   >>      C11111333133313232233133313331333133313331312111112113313223332312   >>