using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MOCK
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            string[] input1 = input.Split();

            Console.WriteLine(input1[0]);
            Console.ReadKey();
        }
    }
}
