Student Cables

using System;
using System.Linq;

namespace Student_Cables
{
	class StudentCables
	{
		public static void Main(string[] args)
		{
			int num = int.Parse(Console.ReadLine());
			int[] nums = new int[num];
			string[] measure = new string[num];
			int sum = 0;
			int joins = 0;
			for(int i = 0; i < num; i++)
			{
				nums[i] = int.Parse(Console.ReadLine());
				measure[i] = Console.ReadLine();
				if(measure[i] == "meters")
				{
					nums[i] = nums[i] * 100;
				}
				if(nums[i] >= 20)
				{
					sum += nums[i];
					joins++;
				}
			}
			sum = sum - 3 * (joins - 1);
			int numOfCables = sum / 504;
			Console.WriteLine(numOfCables);
			int leftover = sum - numOfCables * 504;
			Console.WriteLine(leftover);

		}
	}
}