import java.io.*;
import java.util.*;

class Program {

	private static String fajlOlvas(String path) {
		File file = new File(path);
		Scanner olvaso = null;
		StringBuilder strb = new StringBuilder((int)file.length());
		try {
			olvaso = new Scanner(file);
		} catch(IOException e) {
			e.printStackTrace();
		}
		
		String sorTores = System.getProperty("line.separator");

		try {
			while(olvaso.hasNextLine()) 
				strb.append(olvaso.nextLine() + sorTores);
			return strb.toString();
		} finally {
			olvaso.close();
		}
	}
	public static void main(String[] args) {
		String str = fajlOlvas("adat.txt");
		System.out.println(str.replace("m", "g"));
	}
}