
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
Form four-digit numbers without repeating digits using the numbers 0, 1, 2, 3, 4, 5.  
(Ⅰ) How many different four-digit numbers can be formed?  
(Ⅱ) If the ten's digit is greater than both the unit's digit and the hundred's digit, how many such four-digit numbers are there?  
(Ⅲ) Arrange the four-digit numbers from (I) in ascending order into a sequence. What is the 85th item?

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