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

namespace fdsf
{
    class Program
    {
        static void Main(string[] args)
        {

            var kozunak = int.Parse(Console.ReadLine());
            string comand = "";
            int sum = 0;
            for (int i = 0; i < kozunak; i++)
            {
                comand = Console.ReadLine();
                while (comand!="Stop")
                {
                    int grade= int.Parse(comand);
                    sum += grade;
                    comand = Console.ReadLine();
                }


            }
        }
    }
}