D212313331123313132313132313233313232313231333132321133132322331323221131   >>    D21231333112331313231313231323331323231323133313232113313232233132322113   <<    D212313331123313132313132313233313232313231333132321133132322331323221133   >>      D212313331123313132313132313233313232313231333132321133132322331323221132   >>