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

namespace ConsoleApp4
{
 class Program
 {
  static void Main(string[] args)
  {
            int n = Convert.ToInt16(Console.ReadLine());
            int s = 2;
            for (int i = 1; i<=n; i++)
            {
                string a = Console.ReadLine();
                if (a.Contains("+one"))
                    s += 2;
                else s++;
            }
            if (s == 13) s++;
            Console.WriteLine(s * 100);
  }
 }
}