public static void Main(String[] args)
{
NoPointSegment solver = new NoPointSegment();
// test case 1
Console.WriteLine(solver.Intersection(new { 0, 0, 0, 1 }, new { 1, 0, 1, 1 }));
// test case 2
Console.WriteLine(solver.Intersection(new { 0, 0, 0, 1 }, new { 0, 1, 0, 2 }));
// test case 3
Console.WriteLine(solver.Intersection(new { 0, -1, 0, 1 }, new { -1, 0, 1, 0 }));
public static void Main(String[] args)
{
string input = Console.ReadLine();
NoPointSegment solver = new NoPointSegment();
do
{
var segments = input.Split('|');
var segParts = segments[0].Split(',');
var seg1 = new int[4] {
int.Parse(segParts[0]), int.Parse(segParts[1]), int.Parse(segParts[2]), int.Parse(segParts[3])
};
segParts = segments[1].Split(',');
var seg2 = new int[4] {
int.Parse(segParts[0]), int.Parse(segParts[1]), int.Parse(segParts[2]), int.Parse(segParts[3])
};
Console.WriteLine(solver.Intersection(seg1, seg2));
input = Console.ReadLine();
} while (input != "-1");
}