my name is li baoling . i have a good friend . her name is chen ziqing . i am 13 years old . she is as old as me. i am 155cm tall. she is 150cm tall . she is 5cm shorter than me . i am 36kg . she is 37kg . she is heavier than me .she often does homework with me .we always help each other. i am happy to have a good firend .