题解 | #计算商场折扣#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);
        int n = console.nextInt();
        if (n >= 5000) {
            n = (int) (n * 0.6);
        } else if (n >= 2000) {
            n = (int) (n * 0.7);
        } else if (n >= 500) {
            n = (int) (n * 0.8);
        } else if (n >= 100) {
            n = (int) (n * 0.9);
        }
        System.out.println(n);
    }
}