
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
20 children are standing in a row. Counting from left to right, Yang Tao is the 3rd, and counting from right to left, Qian Hui is the 4th. How many children are there between Yang Tao and Qian Hui?

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