BEGIN {
	if (CASE == 1)
	{
		ARGV[1] = "a=20";
	}
	else if (CASE == 2)
	{
		a = "hello world";
		ARGV[1] = "a=20";
	}
	else if (CASE == 3)
	{
		x = "hello world";
		ARGV[1] = "a=20";
	}
	else if (CASE == 4)
	{
		qa = "hello world";
		ARGV[1] = "a=20";
	}
	else if (CASE == 5)
	{
		ARGV[1] = "a=20";
	}
	else if (CASE == 6)
	{
		a = "hello world";
		ARGV[1] = "a=20";
	}
	else if (CASE == 7)
	{
		ARGV[1] = "a=20";
		ARGV[2] = "bb=30";
	}
	else if (CASE == 8)
	{
		ARGV[1] = "a=20";
		ARGV[2] = "qqq=99";
	}
	else if (CASE == 9)
	{
		ARGV[1] = "ddd=44";
	}
	else if (CASE == 10)
	{
		ARGV[1] = "a=20";
		ARGV[2] = "bb=30";
		ARGV[3] = "ccc=40";
	}
	else if (CASE == 11)
	{
		ARGV[1] = "rrr=300";
		ARGV[2] = "ttt=500";
	}
	else if (CASE == 12)
	{
		x["abc"] = "donkey";
		@reset x;
		print (x === @nil);
		exit;
	}
	else if (CASE == 13)
	{
		ARGV[1] = "x=20";
		@reset x;
		print (x === @nil);
		exit;
	}
	else if (CASE == 14)
	{
		ARGV[1] = "x=20";
		x["abc"] = "donkey";
		@reset x;
		print (x === @nil);
		exit;
	}
}

{
	if (CASE == 1)
		print qqq, a, $1;
	else if (CASE == 2)
		print qqq, a, $1;
	else if (CASE == 3)
		print qqq, a, x, $1;
	else if (CASE == 4)
		print qqq, qa, a, $1;
	else if (CASE == 5)
		print qqq, rrr, sss, a, $1;
	else if (CASE == 6)
		print qqq, rrr, a, $1;
	else if (CASE == 7)
		print qqq, a, bb, $1;
	else if (CASE == 8)
		print qqq, a, $1;
	else if (CASE == 9)
		print a, bb, ccc, ddd, $1;
	else if (CASE == 10)
		print qqq, a, bb, ccc, $1;
	else if (CASE == 11)
		print qqq, rrr, sss, ttt, $1;

	exit;
}