D12121212213231323132323323132322331323331312113313233313311232322311   >>    D1212121221323132313232332313232233132333131211331323331331123232231   <<    D12121212213231323132323323132322331323331312113313233313311232322313   >>      D12121212213231323132323323132322331323331312113313233313311232322312   >>