using System;
namespace _06_Problem_6.Catch_the_Thief
{
    class ProgramCatch_the_Thief
    {
        static void Main()
        {
          
            string numeralType = Console.ReadLine();
            int nums = int.Parse(Console.ReadLine());
            long max = long.MinValue;
            switch (numeralType)
            {
                case "sbyte":
                    try
                    {
                        
                        for (int i = 0; i < nums; i++)
                        {
                            sbyte now = sbyte.Parse(Console.ReadLine());
                            max = Math.Max(max, now);
                        }

                    }
                    catch (Exception)
                    {


                    }; break;
                case "int":

                    try
                    {
                        
                        for (int i = 0; i < nums; i++)
                        {
                            int now = int.Parse(Console.ReadLine());
                            max = Math.Max(max, now);
                        }

                    }
                    catch (Exception)
                    {


                    }; break;

                case "long":

                    try
                    {
                         
                        for (int i = 0; i < nums; i++)
                        {
                            long now = long.Parse(Console.ReadLine());
                            max = Math.Max(max, now);
                        }

                    }
                    catch (Exception)
                    {


                    }; break;

            }

            Console.WriteLine(max);
        }
    }
}