C111123313121111121111331323133313331333132333133313232212312311   >>    C11112331312111112111133132313331333133313233313331323221231231   <<    C111123313121111121111331323133313331333132333133313232212312313   >>      C111123313121111121111331323133313331333132333133313232212312312   >>