import java.util.*;
 

public class Main {
	
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int hyaku = sc.nextInt();
		int niju=sc.nextInt();
		int iti=sc.nextInt();
		niju+=iti/25;
		iti=iti%25;
		hyaku+=niju/4;
		niju=niju%4;
		hyaku=hyaku%10;
		System.out.println(iti+niju+hyaku);
	}
}