ADD A 1000 B 1400
ADD C 1300 B 1600
ADD F 700 B 800
ADD G 300 H 1300
ADD D 1400 C 1500
ADD D 1200 E 1800
ADD A 400 F 600
ADD H 800 J 1000
ADD D 1000 C 1100
ADD F 700 D 900
QUERY_STATION C 1000
QUERY_JOURNEY A 300 B
QUERY_JOURNEY A 700 B
ADD A 400 C 800
QUERY_JOURNEY A 300 B
QUERY_STATION A
EXIT