C111123313331323113313331333133313331323132333133313331322223313223313331212331   >>    C11112331333132311331333133313331333132313233313331333132222331322331333121233   <<    C111123313331323113313331333133313331323132333133313331322223313223313331212333   >>      C111123313331323113313331333133313331323132333133313331322223313223313331212332   >>