D12121212121313232233132332313233313132322132313331323131323121   >>    D1212121212131323223313233231323331313232213231333132313132312   <<    D12121212121313232233132332313233313132322132313331323131323123   >>      D12121212121313232233132332313233313132322132313331323131323122   >>