PROGRAMMING:Statistical score

Title Description
Input the scores of M courses of n students, and count the students with 95 points or more in 2 or more courses.
###Input format:
Enter the score of N rows and m columns, and require integers from 0 to 100, separated by spaces（ 2<=N，M<=10）
###Output format:
If there are students with 95 or above in 2 or more courses, it will be displayed“ student:n ”; Otherwise, "None" is displayed.
###Input sample 1:
Here is a set of inputs. For example:
```in
3 4
89 95 96 90
88 87 90 81
90 99 100 91
```
###Output sample 1:
The corresponding output is given here. For example:
```out
student:1
student:3
```
###Input sample 2:
Here is a set of inputs. For example:
```in
4 5
80 91 89 95 85
86 87 90 81 89
89 95 89 88 85
94 82 86 92 89
```
###Output sample 2:
The corresponding output is given here. For example:
```out
None
```







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