D12121323331313133313233313121111331323221323133313232233132321111   >>    D1212132333131313331323331312111133132322132313331323223313232111   <<    D12121323331313133313233313121111331323221323133313232233132321113   >>      D12121323331313133313233313121111331323221323133313232233132321112   >>