D121213233313223313132322231323132313233313232322331323132322112331   >>    D12121323331322331313232223132313231323331323232233132313232211233   <<    D121213233313223313132322231323132313233313232322331323132322112333   >>      D121213233313223313132322231323132313233313232322331323132322112332   >>