D12121212213231323132323323132322331323223313113121123313132313233311   >>    D1212121221323132313232332313232233132322331311312112331313231323331   <<    D12121212213231323132323323132322331323223313113121123313132313233313   >>      D12121212213231323132323323132322331323223313113121123313132313233312   >>