
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
Carolina has a box of 30 matches. She uses matchsticks to form the number 2022. How many matchsticks will be left in the box when she has finished? 

A) 20
B) 19
C) 10
D) 9
E) 5

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