public class Test {
    public static void find() {
        int num = 102,count = 0;
        int a,b,c;//百，十，个
        while(num <= 987){
            a = num / 100;
            b = (num - a * 100) / 10;
            c = num % 10;
            if(a != b && a != c && b != c){
                System.out.println(num);
                ++count;
            }
            ++num;
        }
        System.out.println("count = " + count);
    }

    public static void main(String[] args) {
        find();
    }
}