import java.util.*;

public class SXThoiGian {

public static class ThoiGian implements Comparable<ThoiGian> {

private int hour;

private int minute;

private int second;

public ThoiGian() {

this.hour = 0;

this.minute = 0;

this.second = 0;

}

public ThoiGian(int hour, int minute, int second) {

this.hour = hour;

this.minute = minute;

this.second = second;

}

public int getHour() {

return this.hour;

}

public int getMinute() {

return this.minute;

}

public int getSecond() {

return this.second;

}

@Override

public int compareTo(ThoiGian thoiGian) {

return (this.hour * 3600 + this.minute * 60 + this.second)

- (thoiGian.hour * 3600 + thoiGian.minute * 60 + thoiGian.second);

}

}

public static Scanner in = new Scanner(System.in);

public static void testcase() {

List<ThoiGian> thoiGian = new ArrayList<>();

int t = Integer.parseInt(in.nextLine());

for (int i = 1; i <= t; i++) {

int h = in.nextInt();

int m = in.nextInt();

int s = in.nextInt();

thoiGian.add(new ThoiGian(h, m, s));

}

Collections.sort(thoiGian);

for (ThoiGian x : thoiGian) {

System.out.print(x.getHour() + " " + x.getMinute() + " " + x.getSecond());

System.out.println();

}

}

public static void main(String args[]) {

testcase();

}

}