D13231123313133313132233132312132313233313233313223313232332313231323221111   >>    D1323112331313331313223313231213231323331323331322331323233231323132322111   <<    D13231123313133313132233132312132313233313233313223313232332313231323221113   >>      D13231123313133313132233132312132313233313233313223313232332313231323221112   >>