C111123313331323113313331333133313331323132333132322331323233311   >>    C11112331333132311331333133313331333132313233313232233132323331   <<    C111123313331323113313331333133313331323132333132322331323233313   >>      C111123313331323113313331333133313331323132333132322331323233312   >>