public class NumberPuzzle4 { public static void main(String[] args) { int n, y, z; for (int x = 1; x <= 25; x++) { for (n = 1; n <= 25; n++) { for (y = 1; y <= 25; y++) { for (z = 1; z <= 25; z++) { if (((x + n + y + z) == 45) && (x + 2 == n - 2) && (x + 2 == y * 2) && (x + 2 == z / 2)) System.out.println(x + " " + n + " " + y + " " + z); } z -= 24; } y -= 24; } n -= 24; } } }