import java.util.Scanner;

public class Yukicoder32 {

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