[백준] 17219번 비밀번호 찾기

import java.util.HashMap;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
    	
    	Scanner kb = new Scanner(System.in);
    	StringBuilder sb = new StringBuilder();
    	HashMap<String, String> map =  new HashMap<>();
    	
    	int N = kb.nextInt();
    	int M = kb.nextInt();
    	
    	for(int i=0; i<N; i++) {
    		String address = kb.next();
    		String pw = kb.next();
    		map.put(address, pw);
    	}
    	
    	for(int i=0; i<M; i++) {
    		String findAddress = kb.next();
    		sb.append(map.get(findAddress)).append('\n');
    	}
    	
    	System.out.print(sb.toString());

    }
}