#Taxi, 543 bytes, sum 47124 (ASCII)

374 is waiting at Starchild Numerology.Go to Starchild Numerology:w 1 l 2 r 1 l 1 l 2 l.Pickup a passenger going to The Underground.'~' is waiting at Writer's Depot.Go to Writer's Depot:w 1 r 1 l 1 r.Pickup a passenger going to Cyclone.Go to Cyclone:n.[a]Pickup a passenger going to Cyclone.Pickup a passenger going to Post Office.Go to Zoom Zoom:n.Go to Post Office:w 3 l 2 r 1 l.Go to The Underground:n 1 r 1 l.Switch to plan "R" if no one is waiting.Pickup a passenger going to The Underground.Go to Cyclone:n 3 l 2 l.Switch to plan "a".[R] 

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The output is 374 tildes ~.

Taxi, 543 bytes, sum 47124 (ASCII)

374 is waiting at Starchild Numerology.Go to Starchild Numerology:w 1 l 2 r 1 l 1 l 2 l.Pickup a passenger going to The Underground.'~' is waiting at Writer's Depot.Go to Writer's Depot:w 1 r 1 l 1 r.Pickup a passenger going to Cyclone.Go to Cyclone:n.[a]Pickup a passenger going to Cyclone.Pickup a passenger going to Post Office.Go to Zoom Zoom:n.Go to Post Office:w 3 l 2 r 1 l.Go to The Underground:n 1 r 1 l.Switch to plan "R" if no one is waiting.Pickup a passenger going to The Underground.Go to Cyclone:n 3 l 2 l.Switch to plan "a".[R] 

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The output is 374 tildes ~.