import java.util.Arrays;
import java.util.Random;
public class Main {
public static int[] shuffle(int[] numbers) {
for (int i = 0; i < numbers.length; i++) {
int swap = new Random().nextInt(i + 1);
int temp = numbers[swap];
numbers[swap] = numbers[i];
numbers[i] = temp;
}
return numbers;
}
public static void main(String[] args) {
int[] i = shuffle(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 });
System.out.print(Arrays.toString(i));
}
}