A 4 20 July 8, 2019 16 32 64 128 A 4 2017 A 4 2018 A 4 2020 A 4 2024 A 4 2021 A 4 2004 A 4 2012 A 4 2025 A 4 2023 A 4 2000 A 4 200 A 4 2010 A 4 2015 4 a 20 ma Whats a 4 20