D12121323331313331313232112323132333132323323331313331323133313233313223221   >>    D1212132333131333131323211232313233313232332333131333132313331323331322322   <<    D12121323331313331313232112323132333132323323331313331323133313233313223223   >>      D12121323331313331313232112323132333132323323331313331323133313233313223222   >>