백준 10926 JAVA

import java.io.*;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));

        String n = br.readLine();

        bw.write(n+"??!");
        bw.flush();
    }
}