D1313331322132333132333131311331323331323132233132313231323211121   >>    D131333132213233313233313131133132333132313223313231323132321112   <<    D1313331322132333132333131311331323331323132233132313231323211123   >>      D1313331322132333132333131311331323331323132233132313231323211122   >>