D13231123313133313132233132312132313233313233313223313231112321   >>    D1323112331313331313223313231213231323331323331322331323111232   <<    D13231123313133313132233132312132313233313233313223313231112323   >>      D13231123313133313132233132312132313233313233313223313231112322   >>