D12121212213231323132323323132322331311331313232233132312312321   >>    D1212121221323132313232332313232233131133131323223313231231232   <<    D12121212213231323132323323132322331311331313232233132312312323   >>      D12121212213231323132323323132322331311331313232233132312312322   >>