
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
Nine identical postcards cost less than 10 rubles, and ten of the same postcards cost more than 11 rubles. How much does one postcard cost? (It is known that one postcard costs a whole number of kopecks).

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