백준 #24079번 移動 (Moving)

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		int x = sc.nextInt();
		int y = sc.nextInt();
		int z = sc.nextInt();
		
		if((x + y) * 60 <= z * 60 + 30) {
			System.out.println("1");
		}else {
			System.out.println("0");
		}
		sc.close();
	}
}