import java.util.*;
public class Tim_cac_so_co_3_chu_so {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc=new Scanner(System.in);
		int so=sc.nextInt();
		if(so/100!=0){
			System.out.println("so co 3 chu so"+so/100);
		}
	}

}
