
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
Arrange the numbers $1, 2, 3, 4, 5, 6$ in a row, and denote the $i$-th number as $a_i (i=1,2\cdots 6)$, with the conditions that $a_1 \ne 1$, $a_3 \ne 3$, $a_5 \ne 5$, and $a_1 < a_3 < a_5$. Calculate the number of different arrangements.

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