
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

Observe the following table of numbers (each row is horizontal):
$$
\begin{array}{l}
\frac{1}{1} ; \\
\frac{2}{1} ; \frac{1}{2} ; \\
\frac{3}{1} ; \frac{2}{2} ; \frac{1}{3} ; \\
\frac{4}{1} ; \frac{3}{2} ; \frac{2}{3} ; \frac{1}{4} ; \\
\frac{5}{1} ; \frac{4}{2} ; \frac{3}{3} ; \frac{2}{4} ; \frac{1}{5} ; \\
. . . . . .
\end{array}
$$

Based on the pattern expressed by the first 5 rows, indicate which row and which position from left to right in that row the number $\frac{1991}{1949}$ lies in.

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