import java.util.Scanner;
import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = n;
        int cnt = 0;
        LinkedHashMap<String,String> lhm = new LinkedHashMap();
        while(m-- != 0){
            String a = sc.next();
            String b = sc.next();
            char[] c = b.toCharArray();
            boolean flag = false;
            for(int i = 0;i<c.length;i++){
                if(c[i] == '1') {
                    c[i] = '@';
                    flag = true;
                } else if(c[i] == '0') {
                    c[i] = '%';
                    flag = true;
                } else if(c[i] == 'l') {
                    c[i] = 'L';
                    flag = true;
                } else if(c[i] == 'O') {
                    c[i] = 'o';
                    flag = true;
                }
            }
            if(!flag){  // 如果一个都没有改的话
                cnt++;
            }else{
                lhm.put(a,String.valueOf(c));
            }
        }
        if(lhm.size() != 0){
            System.out.println(lhm.size());
            Iterator it = lhm.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry entry = (Map.Entry) it.next();
                System.out.println( entry.getKey() + " " + entry.getValue());
            }
        }else if(n == 1){
            System.out.println("There is " +n+" account and no account is modified");
        }else{
             System.out.println("There are " +n+" accounts and no account is modified");
        }
    }
}