D121213233313223313111323131323132333132333133313132323323331323132322121   >>    D12121323331322331311132313132313233313233313331313232332333132313232212   <<    D121213233313223313111323131323132333132333133313132323323331323132322123   >>      D121213233313223313111323131323132333132333133313132323323331323132322122   >>