import java.util.Scanner;

public class Chokin {

	public static void main(String[] args) {
		Scanner s = new Scanner(System.in);
		int L = s.nextInt(), M = s.nextInt(), N = s.nextInt();
		s.close();
		if(N/25 >= 1){
			M += N/25;
		}
		if(M/4 >= 1){
			L += M/4;
		}
		System.out.println(N%25 + M%4 + L%10);
	}

}