Денис. 11"Б". ДЗ на 01.10.2020

package com.brightos;

public class Main {
    private static int[] a = new int[100000];

    public static void main(String[] args) {
        for (int i = 0; i < a.length; i++) {
            prepare();
            int w = i;
            int k = 1;
            a[k] = w;
            while (w != 85 && k < a.length - 1) {
                int s = 0;
                while (w != 0) {
                    int c = w % 10;
                    s += c * c;
                    w /= 10;
                }
                w = s;
                k++;
                a[k] = w;
            }
            if (k == 5 && check())
                System.out.println(i);
        }
    }

    private static boolean check() {
        for (int i = 0; i < a.length - 1; i++)
            if ((a[i] < 10 || a[i] > 99) && a[i] != 123123123)
                return false;
        return true;
    }

    private static void prepare() {
        for (int i = 0; i < a.length - 1; i++)
            a[i] = 123123123;
    }
}