//输入输出
import java.util.Scanner;//引入Scanner类
public class Test02{
        public static void main(String[] args){
                int h2=2,h3=3;
                Scanner sc=new Scanner(System.in);//创建Scanner对象sc
                int h1=sc.nextInt();//需要从键盘输入的数据
                
                int max=(h1>h2?h1:h2)>h3?(h1>h2?h1:h2):h3;
                System.out.println(max);
                        
        }
        
}