import java.util.Scanner;

public class WhileCoins {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        double change = Double.parseDouble(scanner.nextLine());
        change =Math.floor(change *100);
        int coins = 0;

        while (change >0){
            if (change >= 200){
                coins ++;
                change -= 200;
            }else if (change >= 100){
                coins ++;
                change -=100;
            }else if (change >= 50){
                coins ++;
                change -= 50;
            }else if (change >= 20){
                coins ++;
                change -= 20;
            }else if (change >= 10){
                coins ++;
                change -=10;
            }else if (change >= 5){
                coins ++;
                change -=5;
            }else if (change >=2){
                coins++;
                change -= 2;
            }else if(change >= 1){
                coins++;
                change -= 1;
            }

        }
        System.out.println(coins);
    }
}