一个班有若干个学生，每个学生有4门课程，交互式输入每个学生的各门课程的成绩，找出其中有不及格课程的学生的序号，并输出其所有的课程成绩。-A class there are several students, each of the students has 4 courses, interactive input of every student of every course grades, find out which one of the students who have failed