import java.util.Random;
class Randoms
{
    public static void main(String args[]){
        int[] randoms = new int[]{1,2,3,4,5};
        Random rnd = new Random();
        int x = 0;
        int count = 0;
        while(count != 5)
        {
             x = rnd.nextInt(5);
             if(randoms[x] != -1)
             {
                 System.out.println(randoms[x]);
                 randoms[x] = -1;
                 count ++;
             }
        } 
    }
}