[백준] 2741번 : N 찍기 - C#

https://www.acmicpc.net/problem/2741

using System;
using System.Text;

class Program
{
    static void Main() {
        string s=Console.ReadLine();
        int n=int.Parse(s);
        StringBuilder sb=new StringBuilder();
        for(int i=1;i<=n;i++){
            sb.AppendLine(i.ToString());
        }
        Console.WriteLine(sb.ToString());
    }
}