C# Playground - Fibonacci Sequence: Online Interpreter, Compiler & Editor

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace SoloLearn
{
    class Program
    {
        static void Main(string[] args)
        {
            // Enter length of sequence.
            long n =int.Parse(Console.ReadLine());
            long[] a = new long[n];
            a[0] = 1;
            a[1] = 1;
            
            for(int i = 2; i < a.Length; ++i)
            {
               a[i] = a[i - 1] + a[i - 2];
            }
            
            for(int i = 0; i < a.Length - 1; ++i)
            {
               Console.Write(a[i] + ",");
            }
OUTPUT