
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
In an opaque bag, there are $4$ balls, each with a different number written on it, which are $1$, $2$, $3$, $4$. Except for the numbers, all the balls are the same. Two balls are randomly drawn from the bag. Calculate the probability that the numbers on both balls are odd.

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