using System;

public class Program

{

    public static void Main()

    { 

        Console.WriteLine("What's the temperature?(celsius)");

        int temp = Convert.ToInt32(Console.ReadLine());

        if(temp <= 0) 

        {

            Console.WriteLine("solid");

        }

        else if (temp >= 1 && temp <= 99)

        {

            Console.WriteLine("liquid");

        }

        else if (temp >= 100) 

        {

            Console.WriteLine("gas");

        }

    }

}