import java.util.Random;

public class Test
{
    private static final int MAX=60;
    
    public static void main(String[] args)
    {
        Test test=new Test();
        Random random=new Random(System.currentTimeMillis());
        int[] array=new int[MAX];
        int currentNumber=0,count=0;
        
        while(true)
        {
            currentNumber=Math.abs(random.nextInt())%MAX+1;
            if(test.isRepeat(currentNumber,array,count))
            {
                continue;
            }
            else
            {
                array[count]=currentNumber;
                count++;
            }
            
            if(count>=MAX)
            {
                break;
            } 
        }
        
        test.printNumber(array);
    }
    
    private boolean isRepeat(int currentNumber,int[] array,int count)
    {
        for(int i=0;i<count;i++)
        {
            if(currentNumber==array[i])
            {
                return true;
            }
        }
        return false;
    }
    
    private void printNumber(int[] array)
    {
        for(int i=0;i<MAX;i++)
        {
            System.out.print(array[i]+" ");
        }
    }
}