D2311231323331322331313232233132313231323221133132333132311112321   >>    D231123132333132233131323223313231323132322113313233313231111232   <<    D2311231323331322331313232233132313231323221133132333132311112323   >>      D2311231323331322331313232233132313231323221133132333132311112322   >>