C111113331333132322331333133313331333133313121111331331121111133313231323311   >>    C11111333133313232233133313331333133313331312111133133112111113331323132331   <<    C111113331333132322331333133313331333133313121111331331121111133313231323313   >>      C111113331333132322331333133313331333133313121111331331121111133313231323312   >>