D12121212121313232233132332313233313132313331313232113313231323132322111   >>    D1212121212131323223313233231323331313231333131323211331323132313232211   <<    D12121212121313232233132332313233313132313331313232113313231323132322113   >>      D12121212121313232233132332313233313132313331313232113313231323132322112   >>