experience gaining

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

namespace ConsoleApp1
{
    class Exam
    {
        static void Main(string[] args)
        {
            int experience = int.Parse(Console.ReadLine());
            int battles = int.Parse(Console.ReadLine());
            double sumExp = 0;
            int count = 0;

            for (int i = 1; i <= battles; i++)
            {
                double points = double.Parse(Console.ReadLine());

                if (i % 3 == 0)
                {
                    points *= 1.15;
                }
                if (i % 5 == 0)
                {
                    points *= 0.90;
                }

                sumExp += points;
                count = i;

                if (sumExp >= experience)
                {
                    break;
                }

            }

            if (sumExp >= experience)
            {
                Console.WriteLine($"Player successfully collected his needed experience for {count} battles.");
            }
            else
            {
                Console.WriteLine($"Player was not able to collect the needed experience, {experience - sumExp:f2} more needed.");
            }

        }
    }
}