D12121323331322331311132313132313331313232233132323132313233313231333221   >>    D1212132333132233131113231313231333131323223313232313231323331323133322   <<    D12121323331322331311132313132313331313232233132323132313233313231333223   >>      D12121323331322331311132313132313331313232233132323132313233313231333222   >>