
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
Lines $l$ and $m$ remain parallel, and the angles at points at which a third line $\overline{CD}$, also parallel to $l$ and $m$, intersects $l$ and $m$ are changed such that $m\angle A = 110^\circ$ and $m\angle B = 140^\circ$. Find the measure of $m\angle C$.

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