C111123313121111121111331333133313231323132322331333132313331332111133131232311   >>    C11112331312111112111133133313331323132313232233133313231333133211113313123231   <<    C111123313121111121111331333133313231323132322331333132313331332111133131232313   >>      C111123313121111121111331333133313231323132322331333132313331332111133131232312   >>