D1212132333132233131323222313231323132313331322331323132321112321   >>    D121213233313223313132322231323132313231333132233132313232111232   <<    D1212132333132233131323222313231323132313331322331323132321112323   >>      D1212132333132233131323222313231323132313331322331323132321112322   >>