import java.io.*;
public class Sisse1{
  public static void main(String argumendid[]) throws Exception{
    int arv;
    double distants;
    String s;
    PrintWriter valja=new PrintWriter(System.out, true);
    BufferedReader sisse=new BufferedReader(
      new InputStreamReader(System.in)
    );
    valja.println("Osalejate arv:");
    s=sisse.readLine();
    arv=Integer.valueOf(s).intValue();
    valja.println("Vahemaa:");
    distants=Double.valueOf(sisse.readLine()).doubleValue();
    valja.println("Kokku läbiti "+arv*distants+" km");
  }
}