阅读短文，翻译画线部分的句子。
Every week, Julia would go to visit her grandparents. ①The grandfather would give each child a few coins and tell them to buy something they like. They would buy toys and candy. After they grew a little bit older, their parents thought that it was time for them to learn how to manage（管理）money. So the parents asked the children to think of ways to manage money.
Ruben is the cleverest boy. He decided to earn money by buying and selling things. ②他得到了来自全家的支持。But Nico, the smallest child, still spent the money as usual. Ruben thought ③it was unfair and he stopped saving his money, too.
For little Julia, she had a wonderful, secret plan. But ④她的父母对她感到非常失望. They thought Julia wasn't doing anything.
One day, Julia came with a violin and played it for the family. Everyone was surprised. They knew that Julia liked the violin. ⑤but her family was too poor to afford the violin classes for her. So, Julia found a street violinist and asked his to teach her. In return, she gave his all her money. The violinist was deeply moved by Julia. He taught her for months and rent a violin to her. Then, Julia gave performances with the violinist in the street. By doing this, she earned enough money to pay for the violin.
的整数部分是a，那么求 
？