PROGRAMMING:Student information input and output

Input the information of several students (student number, name, grade). When the input student number is 0, it ends. Organize the information of these students with one-way linked list, and then output it in order.
###Input example:
```in
1 zhang 78
2 wang 80
3 li 75
4 zhao 85
0
```
###Output example:
```out
1 zhang 78
2 wang 80
3 li 75
4 zhao 85
```






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