32 lines
959 B
Java
32 lines
959 B
Java
import java.util.Scanner;
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import java.util.HashMap;
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public class Main{
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static String mail(String s){
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String[] a = s.split("[' ']+");
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String r = a[a.length-1];
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for(int i=0; i<a.length-1; i++){
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if(a[i].length() != 0) r += Character.toString(a[i].charAt(0));
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}
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return r;
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}
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public static void main(String[] args) {
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Scanner sc = new Scanner(System.in);
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sc.next();
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HashMap<String, Integer> a = new HashMap<>();
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while(sc.hasNextLine()){
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String name = sc.nextLine();
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if(name.length() == 0) continue;
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String user = mail(name.toLowerCase());
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if(a.get(user) == null){
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a.put(user, 2);
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}else{
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int th = a.get(user);
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a.put(user, th+1);
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user += Integer.toString(th);
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}
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System.out.println(user + "@ptit.edu.vn");
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}
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}
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}
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