এর জন্য অনুসন্ধান ফলাফল: ডাব্লুপি+2020 +++++++++++++++++++++20+। 0 b++++++++++ +++++++++++++++++++++++% 2b+++++++++++++++++++++++++++++% B 2b+++++++++++++++++++++ +++++++++++++++++++++++% 2B ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++