e 202020203 202020202083 20202020209 20202020ae 202020203 202020202082 2020202020 20202020a 2020204 2020202020 20202020 202020e 20203 202020202083 2020202020 2020b 202020203 2020202020e 202020203 202020202083 202020202088 20202020e 2020203 202020202083 202020202096 202020e 202020203 202020202083 2020202020 20202020a 2020209 2020202020 20202020 202020e 20203 202020202082 2020202020 2020b