
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 a population of 100 individuals, they are randomly numbered from 0, 1, 2, ..., 99, and evenly divided into 10 groups according to the order of their numbers, with group numbers being 1, 2, 3, ..., 10. Now, using the systematic sampling method to draw a sample of size 10, it is stipulated that if the number drawn in the first group is $m$, then the number drawn in the $k$-th group should have the same units digit as the units digit of $m+k$. If $m=6$, then the number drawn in the 7th group is $\boxed{63}$.

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