
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
If the digit \( 3 \) is placed after a two-digit number whose tens' digit is \( t \), and units' digit is \( u \), what will be the new number?
A) \( 100t + 10u + 3 \)  
B) \( 10t + u + 3 \)  
C) \( 1000t + 100u + 3 \)  
D) \( t + u + 101 \)  
E) \( None of these \)

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