import java.util.ArrayList;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
    // write your code here
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        ArrayList<String> name=new ArrayList<String>();
        //ArrayList<String> list=new ArrayList<String>();
        String[] date=new String[n];
        //输入信息没毛病
        for (int i=0;i<n;i++){
            name.add(sc.next());
            date[i]=sc.next();
        }

        //把年月日合并成一个数组，先是字符型，
        String[] birth=new String[n];
        String str;
        for (int i=0;i<n;i++){
            str="";
            for (int j=0;j<date[i].split("/").length;j++){
                str=str+date[i].split("/")[j];
            }
            birth[i]=str;
        }
        //再转成整型比较大小，对在合理范围内的数组进行处理。
        int[] intbirth=new int[n];

        int count=0;
        for (int i=0;i<n;i++){
            intbirth[i]=Integer.parseInt(birth[i]);
            if (intbirth[i]>=18140906&&intbirth[i]<=20140906){
                count++;
            }
        }
        //需要新建两个数组存储合理的姓名和生日
        String[] namelegal=new String[count];
        int[] birthlegal=new int[count];
        int m=0;
        for (int i=0;i<n;i++){
            if (intbirth[i]>=18140906&&intbirth[i]<=20140906){
                if(m<count){
                    namelegal[m]=name.get(i);
                    birthlegal[m]=intbirth[i];
                    m++;
                }
            }

        }

        //获取最年长者
        System.out.print(count+" ");
        int max=birthlegal[0];
        for(int i=0;i<count;i++){
            if (max>birthlegal[i]){
                max=birthlegal[i];
            }else{
                max=max;
            }
        }
        for(int i=0;i<count;i++){
            if (max==birthlegal[i]){
                System.out.print(namelegal[i]+" ");
            }
        }
        //获取最年轻者
        int min=birthlegal[0];
        for(int i=0;i<count;i++){
            if (min<birthlegal[i]){
                min=birthlegal[i];
            }else{
                min=min;
            }
        }
        for(int i=0;i<count;i++){
            if (min==birthlegal[i]){
                System.out.print(namelegal[i]);
            }
        }
    }
}