not a choice you just have to be. i know i would have been a bag of nerves after two hours, i could not have kept calm with all that waiting. i really hope it goes well when they switch on the device.
thanks jane- i was very anxious, but all was well in the end. n. each one of the following w lines starts with the number of an east-west street, followed by zero or more numbers of the north-south crossings which are unsafe. streets are numbered from 1.
the number of different minimal paths from the park to the station avoiding underground passages. 