
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
Select any 2 numbers from $0,1,2,3,4$ and form a four-digit number (each digit can be used at most 3 times in a single four-digit number). When all such four-digit numbers are arranged in ascending order, 2020 is the $\qquad$th number.

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