When Lena Draper, 10, needed someone to help her with a math problem, she decided the best person for the job was a police officer.
She messaged the Marion Police Department in Ohio on Facebook, and soon received a response from Lt. B.J. Gruber, who advised her to work within the parentheses first, moving from left to right. Draper's mother, Molly, saw the exchange between her daughter and Gruber, and told CBS News she was "happy, but not surprised" that someone from the department responded so quickly. "They are wonderful with their communication with the community." Molly shared on her own Facebook page the messages between Lena and Gruber, and even though his instructions weren't 100 percent accurate, Gruber hopes everyone remembers "it is truly the thought that counts."