12345 is a hotline for communication between the municipal government and citizens, which is very good. As long as you dial 12345, the service platform will enthusiastically answer questions related to people's livelihood, carefully record them, reflect the problems to the relevant departments in time, and urge them to contact the people who reflect the problems as soon as possible to solve the problems in time. For example, last year, residents renovated their old houses for heating, and they destroyed the decoration in the city. I called 12345, and the person in charge of decoration promised to receive 12345 to convey my opinion and carry out indoor heating renovation according to my requirements. I reflected that other problems have also been solved. Very good!