#include "sys/types.h"
#include "stdio.h"
#define MAX 200
#define N 20
main()
{
	int array[N],r;
	int n = 0; int count_check,count_gen ,i,j;

	for(j=0;j<10;j++,printf("\n"))
	{
		srand(j);
		  for (count_gen=0;count_gen<=MAX;count_gen++)
		  {
		    r = rand()%N;
		    for ( count_check = 0; count_check < n; count_check++ )
		    {
		      if ( r == array[count_check] )break;
		    }// end for count_check.
		  if ( count_check == n ) array[n++] = r;
		  }// end for count_gen.
		for(i=0;i<N;i++)
		printf("%d\n",array[i]);
	}// end for j.

}//  end of main.