D121213233313223313132322231323132313331323132233132313113313232331231   >>    D12121323331322331313232223132313231333132313223313231311331323233123   <<    D121213233313223313132322231323132313331323132233132313113313232331233   >>      D121213233313223313132322231323132313331323132233132313113313232331232   >>