
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
Which of the following statements about algorithms is correct? (Fill in the correct number)  
① An algorithm can run endlessly;  
② The steps of an algorithm for a problem cannot exceed 10,000;  
③ There is only one algorithm for accomplishing a task;  
④ Algorithms should be designed to be simple, convenient, and operable.

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