PROGRAMMING:Who got the k-th place
###Problem description
In an exam, each student's grades are different. Now we know each student's student number and grades, and ask for the k-th student's student number and grades.
###Input
The first line has two integers, which are the number of students n (1 ≤ n ≤ 10000) and K (1 ≤ K ≤ n) of the kth student.
Then there are n lines of data, each line includes a student number (integer) and a grade (floating-point number), separated by a space.
###Output
Output the student number and grade of the kth student, separated by a space（ Note: Please output the result in% G format)
###Sample input
```in
5 3
90788001 67.8
90788002 90.3
90788003 61
90788004 68.4
90788005 73.9
```
###Sample output
```out
90788004 68.4
```
###Sample input
```in
1 1
90788001 67.888
```
###Sample output
```out
90788001 67.888
```
###Title Source
http://noi.openjudge.cn/ch0110/01/
answer：If there is no answer, please comment
In an exam, each student's grades are different. Now we know each student's student number and grades, and ask for the k-th student's student number and grades.
###Input
The first line has two integers, which are the number of students n (1 ≤ n ≤ 10000) and K (1 ≤ K ≤ n) of the kth student.
Then there are n lines of data, each line includes a student number (integer) and a grade (floating-point number), separated by a space.
###Output
Output the student number and grade of the kth student, separated by a space（ Note: Please output the result in% G format)
###Sample input
```in
5 3
90788001 67.8
90788002 90.3
90788003 61
90788004 68.4
90788005 73.9
```
###Sample output
```out
90788004 68.4
```
###Sample input
```in
1 1
90788001 67.888
```
###Sample output
```out
90788001 67.888
```
###Title Source
http://noi.openjudge.cn/ch0110/01/
answer：If there is no answer, please comment