D13231123313133313132233132312132313233313233313232333132313331323223311   >>    D1323112331313331313223313231213231323331323331323233313231333132322331   <<    D13231123313133313132233132312132313233313233313232333132313331323223313   >>      D13231123313133313132233132312132313233313233313232333132313331323223312   >>