D11313232233131133131231323132313233313232211221121111331322123231   >>    D1131323223313113313123132313231323331323221122112111133132212323   <<    D11313232233131133131231323132313233313232211221121111331322123233   >>      D11313232233131133131231323132313233313232211221121111331322123232   >>