import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        
        int score1[] ={5,0,0};
        
        if((score1[0]) == 5){
             System.out.println(1);
        }
        int T = 20;
        int score2[] ={4,0,0};
        
        if((score2[0]) * 5 == T){
            System.out.println(4);
        }
        
        
    }}