D121122213233313223313231322112331323131323323132322331323221111   >>    D12112221323331322331323132211233132313132332313232233132322111   <<    D121122213233313223313231322112331323131323323132322331323221113   >>      D121122213233313223313231322112331323131323323132322331323221112   >>