PROGRAMMING:Program to read in three integers from the keyboard and output their sum and average value (exercise 3-6, python programming basis and application, Higher Education Society)
The program reads in three integers from the keyboard and outputs their sum and average value. Among them, the average value retains 2 decimal places.
###Input format:
Integer 1 < br > 1
Integer 2 < br > 2
Integer 3 < br > 1
###Output format:
Sum, average
###Input example:
```in
one
two
three
```
###Output example:
```out
6,2.00
```
Note: there is only one comma between the sum and the mean, and there is no extra space. When using the input() function, do not add output parameters. For OJ, the prompt information in the input ("prompt information") is also a part of the output, which will affect the judgment of OJ< br>
answer：If there is no answer, please comment
###Input format:
Integer 1 < br > 1
Integer 2 < br > 2
Integer 3 < br > 1
###Output format:
Sum, average
###Input example:
```in
one
two
three
```
###Output example:
```out
6,2.00
```
Note: there is only one comma between the sum and the mean, and there is no extra space. When using the input() function, do not add output parameters. For OJ, the prompt information in the input ("prompt information") is also a part of the output, which will affect the judgment of OJ< br>
answer：If there is no answer, please comment