D12121212213231323132323323132322331323223313113121123313231313231323111   >>    D1212121221323132313232332313232233132322331311312112331323131323132311   <<    D12121212213231323132323323132322331323223313113121123313231313231323113   >>      D12121212213231323132323323132322331323223313113121123313231313231323112   >>