import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int l = scan.nextInt();
        int r = scan.nextInt();
    	int count = 0;
    	if(l <= 295 && 296 <= r){
    		count++;
    	}
    	if(l <= 416 && 417 <= r ){
    		count++;
    	}
    	System.out.println(count);
    }
}