PROGRAMMING:Find the total score and average score of students' examination
Given a student's test scores of three subjects (Chinese A, Mathematics B, English c), calculate the total score and average score of the student.
###Input format:
Enter students' test scores of three subjects (Chinese A, Mathematics B, English c) in one line, and separate them with spaces.
###Output format:
Output the total score and average score in one line. The total score and average score retain two decimal places.
###Input example:
```in
75.5 80 94
```
###Output example:
```out
sum = 249.50; average = 83.17
```
answer：If there is no answer, please comment
###Input format:
Enter students' test scores of three subjects (Chinese A, Mathematics B, English c) in one line, and separate them with spaces.
###Output format:
Output the total score and average score in one line. The total score and average score retain two decimal places.
###Input example:
```in
75.5 80 94
```
###Output example:
```out
sum = 249.50; average = 83.17
```
answer：If there is no answer, please comment