D12121212213231323132323323132322331311331313232233132313231333132331221   >>    D1212121221323132313232332313232233131133131323223313231323133313233122   <<    D12121212213231323132323323132322331311331313232233132313231333132331223   >>      D12121212213231323132323323132322331311331313232233132313231333132331222   >>