import java.io.*;

class Tipusv {
	public static void main(String args[]) throws IOException {
		System.out.println("Hi");
			
		InputStreamReader befolyam = new InputStreamReader(System.in);
		BufferedReader be = new BufferedReader(befolyam);
		
		String s = be.readLine();
		
		if(s.matches("((-|\\+)?[0-9]+(\\.[0-9]+)?)+")) 
			System.out.println("Szám");
		else
			System.out.println("Ez nem szám");


		System.in.read();
	}
}