You make the short trip from the Space Station over to the Moon base, Luna city, for a few days. You bump into an old friend of yours who runs a logistics and delivery business there, running automated rovers to deliver supplies to the various outposts around the moon.
Your friend expresses to you they are curious how far their rovers travel per day and you offer to help out.
Your friend supplies you a spreadsheet detailing the distances between the respective outposts, and a record of the stops made by the automated rovers throughout the day (your input data). Each rover starts and ends the day at the main base so they can recharge overnight.
Consider the following simplified example with the distances between base camp and 3 outposts.
base ta00 cx22 xj84
base 0 55457 63529 61302
ta00 55457 0 111890 35768
cx22 63529 111890 0 98977
xj84 61302 35768 98977 0
And the following example rover journey log:
Rover 1 route: base -> cx22 -> ta00 -> base -> xj84 -> base
This particular rover traveled as follows:
Sum these distances to calculate the total distance traveled by this rover as 353480
.
Process the journey distances of all 10 rovers to calculate the total distance traveled. That is your answer value.