inProgress

package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        double change = Double.parseDouble(scan.nextLine());
        double current = 0;
        int counter = 0;
        while (current < change) {
            if (current + 2 <= change) {
                current += 2;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 1 <= change) {
                current++;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.5 <= change) {
                current = current + 0.5;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.2 <= change) {
                current = current + 0.2;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.1 <= change) {
                current = current + 0.1;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.05 <= change) {
                current = current + 0.05;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.02 <= change) {
                current = current + 0.02;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            } else if (current + 0.01 <= change) {
                current = current + 0.01;
                counter++;
                if (current == change) {
                    System.out.println(counter);
                    break;
                }
            }
        }
    }
}