
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Given that 20 students planted trees along a straight road, with each student planting one tree, and the distance between two adjacent trees is 10 meters, determine the two optimal tree pit numbers to place the saplings in order to minimize the total distance walked by the students from their respective tree pits to collect the saplings.

Present the answer in LaTex format: \boxed{Your answer}
user