sentences:  It runs from Mammendorf station to Holzkirchen station via Pasing, central Munich, Munich East, Giesing and Deisenhofen.Trains reverse in Munich East station and, in order for S-Bahn services from St Martinstraße to be inserted into the S-Bahn line while simultaneously reversing to run into the S-Bahn tunnel under central Munich or vice versa, the line between Munich East station and the flying junction between München-Giesing and Fasangarten stations is one of the few in Germany that has traffic running on the left.The line is operated at 20-minute intervals between Maisach and Deisenhofen.