D121213233313131333132333131313132313233313223313113313231323331323221333111   >>    D12121323331313133313233313131313231323331322331311331323132333132322133311   <<    D121213233313131333132333131313132313233313223313113313231323331323221333113   >>      D121213233313131333132333131313132313233313223313113313231323331323221333112   >>