
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
Consider the sum of an arithmetic sequence $$7 + 14 + 21 + \cdots + 77 + 84 + 91$$ where the sequence is considered modulo $10$, and we are to find a number $m$ such that $$7+14+21+\cdots+91 \equiv m \pmod{10},$$ with $0 \leq m < 10$. What is the value of $m$?

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