public static void Main()
Console.WriteLine("Enter the ךength of the sides:");
int side1 = int.Parse(Console.ReadLine());
int side2 = int.Parse(Console.ReadLine());
int side3 = int.Parse(Console.ReadLine());
if (side1<side2+side3 && side2<side1+side3 && side3<side2+side1)
Console.WriteLine("Possible triangle");
Console.WriteLine("Impossible triangle");