
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
Place 6 cards numbered 1, 2, 3, 4, 5, 6 into 3 different envelopes, with each envelope containing 2 cards. If the cards numbered 1 and 2 are placed into the same envelope, calculate the total number of different ways to do this.

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