import java.util.*;

public class Main {
	static Scanner sc = new Scanner(System.in);
	public static void main(String[] args) {
		int num_100 = sc.nextInt();
		int num_25 = sc.nextInt();
		int num_1 = sc.nextInt();
		
		if (num_1 >= 100) {
			int temp = num_1/100;
			num_100 += temp;
			num_1 -= temp*100;
		}
		else if (num_1 >= 25) {
			int temp = num_1/25;
			num_25 += temp;
			num_1 -= temp*25;
		}
		
		if (num_25 >= 4) {
			int temp = num_25/4;
			num_100 += temp;
			num_25 -= temp*4;
		}
		
		if (num_100 >= 10) {
			int temp = num_100/10;
			num_100 -= temp*10;
		}
		
		System.out.println(num_100+num_25+num_1);
	}
}