#

slmgr /ipk <mak>
slui 4

#include <iostream>
using namespace std;

int main()
{
	int k = 50;
	//cin >> 50; кстати доставляет
	// по тому и предположил сразу k = 50
	long double s = 36 * pow(55, k - 1);
	printf_s("%.0lf", s);
}

using System;
using System.Numerics;

namespace big_int_net
{
    class Program
    {
        static void Main(string[] args)
        {
            var s = 36 * BigInteger.Pow(55, 49);
            Console.WriteLine(s);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;

public class dt
{
    public int id;
    public int val;
}

namespace distinct_or_not_distinct
{
    public static class Program
    {
        public static void Main()
        {
            var listdata = new List<dt>();
            listdata.Add(new dt() { id = 1, val = 11 });
            listdata.Add(new dt() { id = 1, val = 12 });
            listdata.Add(new dt() { id = 2, val = 21 });
            listdata.Add(new dt() { id = 2, val = 22 });
            listdata.Add(new dt() { id = 3, val = 31 });
            
            "distinct dt".print();
            listdata.Distinct().ToList().print();
            newLine();

            "distinct id".print();
            (from d in listdata select d.id).Distinct().ToList().print();
            newLine();

            var targetId = 2;
            $"target id {targetId}".print();
            listdata.Where(d => (d.id == targetId)).ToList().print();
            newLine();
        }

        public static void print(this List<dt> l) { foreach (var d in l) d.print(); }
        public static void print(this dt d) => Console.WriteLine($"\tid:{d.id} val:{d.val}");

        public static void print(this List<int> l) { foreach (var i in l) i.print(); }
        public static void print(this int i) => Console.WriteLine('\t' + i.ToString());
        public static void print(this string s) => Console.WriteLine(s);
        public static void newLine() => Console.WriteLine();
    }
}