using System;
public class Program
{
public static void Main()
double price=200;
double h=0; //身高
Console.WriteLine("输入身高 cm");
h = double.Parse(Console.ReadLine());
if(h <120){
Console.WriteLine("免费");
}
else if(h >=120 && h < 150)
Console.WriteLine("半价 "+price/2);
else
Console.WriteLine("全票 "+price);