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

namespace AtCoder.ABC123.C
{
    class Program
    {
        static void Main()
        {
            var sc = new Scanner();
            const int NumOfTransportation = 5;
            var n = sc.NextLong();
            var trans = Enumerable.Range(0, NumOfTransportation).Select(_ => sc.NextLong()).ToArray();
            var time = new long[NumOfTransportation];
            for (int i = 0; i < NumOfTransportation; i++)
            {
                time[i] = i;
                time[i] += n / trans[i];
                if (n % trans[i] != 0)
                {
                    time[i]++;
                }
                Console.Error.WriteLine($"time[{i}]: {time[i]}");
            }

            var total = time[0];
            var min = trans[0];
            for (int i = 1; i < NumOfTransportation; i++)
            {
                Console.Error.WriteLine($"current: {total}, time: {time[i]}");
                if (min < trans[i])
                {
                    total++;
                }
                else
                {
                    total = time[i];
                    min = trans[i];
                }
                Console.Error.WriteLine($"total: {total}");
            }
            Console.WriteLine(total);
        }
    }

    class Scanner
    {
        string[] s;
        long i;

        char[] cs = new char[] { ' ' };

        public Scanner()
        {
            s = new string[0];
            i = 0;
        }

        public string Next()
        {
            if (i < s.Length) return s[i++];
            string st = Console.ReadLine();
            while (st == "") st = Console.ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            if (s.Length == 0) return Next();
            i = 0;
            return s[i++];
        }

        public int Nextint()
        {
            return int.Parse(Next());
        }
        public int[] Arrayint(int N, int add = 0)
        {
            int[] Array = new int[N];
            for (int i = 0; i < N; i++)
            {
                Array[i] = Nextint() + add;
            }
            return Array;
        }

        public long NextLong()
        {
            return long.Parse(Next());
        }

        public long[] ArrayLong(int N, long add = 0)
        {
            long[] Array = new long[N];
            for (long i = 0; i < N; i++)
            {
                Array[i] = NextLong() + add;
            }
            return Array;
        }

        public double NextDouble()
        {
            return double.Parse(Next());
        }

        public double[] ArrayDouble(long N, double add = 0)
        {
            double[] Array = new double[N];
            for (long i = 0; i < N; i++)
            {
                Array[i] = NextDouble() + add;
            }
            return Array;
        }

        public decimal NextDecimal()
        {
            return decimal.Parse(Next());
        }

        public decimal[] ArrayDecimal(long N, decimal add = 0)
        {
            decimal[] Array = new decimal[N];
            for (long i = 0; i < N; i++)
            {
                Array[i] = NextDecimal();
            }
            return Array;
        }
    }
}


Measured memory_bytes: 13396