D13231123313133313132233132312132313233313233313223313232332321   >>    D1323112331313331313223313231213231323331323331322331323233232   <<    D13231123313133313132233132312132313233313233313223313232332323   >>      D13231123313133313132233132312132313233313233313223313232332322   >>