add track (2147483647,0) -> (0,0) add track (0,0) -> (-2147483648,0) list tracks create engine electrical T3 Marie 2147483647 false true create coach passenger 2147483647 true false add train 1 T3-Marie add train 1 W1 put train 1 at (-2147483647,0) in direction -1,0 step 1 step 1 put train 1 at (-2147483647,0) in direction -1,0 step -1 exit