Write a program to achieve: 1. The first to use printf function output shows your class student id name, 2. Then I will make the judgment according to the student id, if we can be divided exactly by 3, is judged to be A model, cannot be divided exactly by 3, are classified as type B, output, for example: 20190001 type A 3. The last input their initials uppercase, and sorted in alphabetical order from big to small order, output, for example: the first letter for KS, change for SK