package yukicorder;
import java.util.Scanner;

public class QNo32 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		short l = sc.nextShort();
		short m = sc.nextShort();
		short n = sc.nextShort();
		int total = 100*l+25*m+n;
		int releive = total%1000;
		short num = 0;
		num += releive/100;
		releive %= 100;
		num += releive/25;
		releive %= 25;
		num += releive/1;
		
		System.out.println(num);
	}

}