import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;


public class Main {
    public static void main(String[] args) throws IOException {
        InputStreamReader inputStreamReader = new InputStreamReader(System.in);
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(System.out);
        int read = inputStreamReader.read();
        while (read >= 0){
            if (read == 13){
                int readNext = inputStreamReader.read();
                if (readNext == 10) {
                    outputStreamWriter.write(readNext);
                    read = inputStreamReader.read();
                    continue;
                }
                outputStreamWriter.write(read);
                if (readNext >= 0)
                outputStreamWriter.write(readNext);
                read = inputStreamReader.read();
                continue;
            }
            outputStreamWriter.write(read);
            read = inputStreamReader.read();
        }
        System.out.flush();
    }
}