PROGRAMMING:Score statistics 2

Enter a positive integer n (n > = 1), and then enter n lines of data to show the scores of each subject of each student in a class (each student's examination subject is the same). Please calculate the average score of each course (keep 2 decimal places).
###Input format:
First a positive integer n (n > = 1), and then enter n rows of data
###Output format:
Output the average score of each course
###Input example:
```in
two
{'Chinese': 95, 'Mathematics': 82,' English ': 75}
{'Chinese': 98, 'Mathematics': 72,' English ': 85}
```
###Output example:
```out
Language: 96.50
Mathematics: 77.00
English: 80.00
```







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