import java.io.*;

import java.io.IOException;

public class Console {

 public static void main(String[] args) {
  while(true) {
   try {
    String i = new String("");
    int b;
    while ((b = System.in.read()) != -1) {
     char c = (char) b;
     if (c != '\n') i += String.valueOf(c);
     else break;
    }
    System.out.println("Echo: " + i);
    i = null; 
   } catch (IOException e) {
    System.err.println("Error reading from user");
   }
  }
 }

}