Input
public class Main
{
static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
static StringTokenizer st;
static String next() throws IOException
{
while(st == null || !st.hasMoreTokens())
st = new StringTokenizer(br.readLine());
return st.nextToken();
//return Integer.parseInt(st.nextToken());
}
public static void main(String[] args) throws IOException
{
String s = next();
}
}