1+ package backjoon ;
2+ // https://www.acmicpc.net/problem/10814
3+ // 나이순정렬
4+ import java .io .BufferedReader ;
5+ import java .io .IOException ;
6+ import java .io .InputStreamReader ;
7+ import java .util .Arrays ;
8+ import java .util .Comparator ;
9+ import java .util .StringTokenizer ;
10+ 11+ public class _10814 {
12+ public static void main (String [] args ) throws IOException {
13+ BufferedReader br = new BufferedReader (new InputStreamReader (System .in ));
14+ // memory 62992 runtime 2084
15+ int N = Integer .parseInt (br .readLine ());
16+ String [][] arr = new String [N ][2 ];
17+ 18+ for (int i =0 ; i <N ; i ++) {
19+ StringTokenizer st = new StringTokenizer (br .readLine (), " " );
20+ arr [i ][0 ] = st .nextToken ();
21+ arr [i ][1 ] = st .nextToken ();
22+ }
23+ 24+ Arrays .sort (arr , new Comparator <String []>() {
25+ @ Override
26+ public int compare (String [] o1 , String [] o2 ) {
27+ return Integer .parseInt (o1 [0 ]) - Integer .parseInt (o2 [0 ]); //나이만 비교
28+ }
29+ });
30+ 31+ for (int i =0 ; i <N ; i ++){
32+ System .out .println (arr [i ][0 ] + " " + arr [i ][1 ]);
33+ }
34+ }
35+ }
36+ /*
37+ INPUT
38+ 3
39+ 21 Junkyu
40+ 21 Dohyun
41+ 20 Sunyoung
42+
43+ OUTPUT
44+ 20 Sunyoung
45+ 21 Junkyu
46+ 21 Dohyun
47+ */
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