package yukiCoder;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class No0032 {

	public static void main(String[] args) {
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

		try {
			int currencyOf100 = Integer.parseInt(bufferedReader.readLine());
			int currencyOf25 = Integer.parseInt(bufferedReader.readLine());
			int currencyOf1 = Integer.parseInt(bufferedReader.readLine());

			int ans = calculation(currencyOf100,currencyOf25,currencyOf1);

			System.out.println(ans);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public static int calculation(int currencyOf100, int currencyOf25, int currencyOf1) {
		if (currencyOf100 == 0 && currencyOf25 == 0 && currencyOf1 == 0) {
			return 0;
		}

		if (currencyOf1 > 0) {
			int addcurrencyOf25 = currencyOf1 / 25;
			currencyOf1 = currencyOf1%25;
			currencyOf25 += addcurrencyOf25;
		}
		if (currencyOf25 >= 4) {
			int addCurrencyOf100 = currencyOf25 / 4;
			currencyOf25 = currencyOf25%4;
			currencyOf100 += addCurrencyOf100;
		}
		if (currencyOf100 >= 10) {
			currencyOf100 = currencyOf100%10;
		}
		return currencyOf1 + currencyOf25 + currencyOf100;
	}

}