flowchart LR id15696277213149321320[level2] id15696277213149321320 --> id159132120600507116(e\nlevel1) id159132120600507116 --> id7500441386962467209(d\nlevel0) id7500441386962467209 --- id8292801017962660105["a\n10"] id7500441386962467209 --- id5855743171222414412["b\n20"] id15696277213149321320 --> id10009280772564895168(f\nlevel0) id10009280772564895168 --- id11951215191344350637["a\n100"] id10009280772564895168 --- id1196345851686744158["b\n200"]