import java.util.*;
class Triangle extends Exception
{
public String toString()
{
return "Not an acceptable triangle";
}
}
public class Program4
{
public static void main(String args[])throws Triangle
{ Scanner sc=new Scanner(System.in);
int a,b,c;
System.out.println("Enter the 3 sides of a triangle:");
a=sc.nextInt();
b=sc.nextInt();
c=sc.nextInt();
try
{
if((a<b+c)&&(b<a+c)&&(c<a+b))
System.out.println("Valid Triangle");
else
throw new Triangle();
}
catch(Triangle e)
{
System.out.println(e);
}
}
}