
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
Dima lives in a nine-story building. He descends by elevator from his floor to the first floor in 1 minute. Due to his short height, Dima cannot reach the button for his floor. Therefore, when going up, he presses the button he can reach and then walks the rest of the way. The entire trip upwards takes 1 minute 10 seconds. The elevator moves up and down at the same speed, and Dima walks up twice as slowly as the elevator. On which floor does Dima live?

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