D12121212121313232233132332313233313132313331313232113313223311   >>    D1212121212131323223313233231323331313231333131323211331322331   <<    D12121212121313232233132332313233313132313331313232113313223313   >>      D12121212121313232233132332313233313132313331313232113313223312   >>