题解 | 牛牛数数

import java.util.Scanner;
public class Main {
    static boolean referee(int n) {
        while (n != 0) {
            if (n % 10 == 4) {
                return true;
            }
            n /= 10;
        }
        return false;
    }
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        for (int i = 1; i <= n; i++) {
            if (i % 4 != 0 && !referee(i)) {
                System.out.println(i);
            }
        }
    }
}