D1313331322132333132333131311331323331323132233132313231333132323321   >>    D131333132213233313233313131133132333132313223313231323133313232332   <<    D1313331322132333132333131311331323331323132233132313231333132323323   >>      D1313331322132333132333131311331323331323132233132313231333132323322   >>