	static private int[][] matrix = 
		
	{
		{ 80,  -1, 167,  70,  56, 141, 226, 301, 364, 136},
		{126, 167,  -1, 200, 113, 202, 119, 131, 198, 125},
		{324, 364, 198, 398, 310, 399, 213,  97,  -1, 236},
		{ 55, 136, 125,  91,  85, 170,  91, 263, 236,  -1},
	};
		
	static private String[] rows = 
	               {"Davenport",
					 "Des Moines",
					 "Sioux City",
					 "Waterloo"
					};
		
	static private String[] cols = 
	                {"Cedar Rapids",
					 "Davenport",
					 "Des Moines",
					 "Dubuque",
					 "Iowa City",
					 "Keokuk",
					 "Mason City",
					 "Omaha",
					 "Sioux City",
					 "Waterloo"
					};
