
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
The high school and lower school have a combined total of 7 times the number of students as the middle school, which has 300 students, so the total number of students in the high school and lower school combined is $7 \cdot 300$. The high school has 4 times as many students as the lower school, and the total number of students in the high school and lower school combined is $s + 4s$, where s is the number of students in the lower school.

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