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

namespace lecture
{
    class Program
    {
        static void Main(string[] args)
        {
int[] values =
                new int[] { 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int k = 0;
int p = 0;
int sum = 0;
int count = 0;
    for(int i = 1; i<=12;i++)
    {

        for(int n = 1; n<= values[i]; n++)
        {
            if(n >= 10)
            {
            k = n/10;
            }
            else
           {
            k = 0;
            }
        p = n %10;
       sum = k +p;
            if(i == sum){
               count ++;
            }
        }
      }
    Console.WriteLine("Lucky Dayは、{0}日あります。",count);
   }
}
}