D12121212213231323132323323132322331311331313232233132313222311   >>    D1212121221323132313232332313232233131133131323223313231322231   <<    D12121212213231323132323323132322331311331313232233132313222313   >>      D12121212213231323132323323132322331311331313232233132313222312   >>