JaeHyeonKim19

import java.io.*;
import java.util.*;

public class Main {
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
	 	int [] changes = {50000, 10000, 5000, 1000, 500, 100, 50, 10};
	 	int answer = 0;
	 	for(int i = 0; i < changes.length; i++) {
	 		while(n / changes[i] > 0) {
	 			answer += n / changes[i];
	 			n %= changes[i];
	 		}
	 	}
	 	System.out.print(answer);
	}
}