时间限制

200 ms

内存限制

65536 kB

代码长度限制

16000 B

判题程序

Standard

作者

CHEN, Yue

Excel can sort records according to any column. Now you are supposed to imitate this function.

**Input**

Each input file contains one test case. For each case, the first line contains two integers N (<=100000) and C, where N is the number of records and C is the column that you are supposed to sort the records with. Then N lines follow, each contains a record of a student. A student's record consists of his or her distinct ID (a 6-digit number), name (a string with no more than 8 characters without space), and grade (an integer between 0 and 100, inclusive).

**Output**

For each test case, output the sorting result in N lines. That is, if C = 1 then the records must be sorted in increasing order according to ID's; if C = 2 then the records must be sorted in non-decreasing order according to names; and if C = 3 then the records must be sorted in non-decreasing order according to grades. If there are several students who have the same name or grade, they must be sorted according to their ID's in increasing order.

3 1 000007 James 85 000010 Amy 90 000001 Zoe 60

000001 Zoe 60 000007 James 85 000010 Amy 90

4 2 000007 James 85 000010 Amy 90 000001 Zoe 60 000002 James 98

000010 Amy 90 000002 James 98 000007 James 85 000001 Zoe 60

4 3 000007 James 85 000010 Amy 90 000001 Zoe 60 000002 James 90

000001 Zoe 60 000007 James 85 000002 James 90 000010 Amy 90