
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
What different values can the digit U take in the cryptarithm U$\cdot$ЛАН + U$\cdot$ДЭ = 2020? Justify your answer. (Identical digits are represented by identical letters, different digits by different letters.)

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