using System;
using System.Text;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using static System.Console;
using static System.Math;

namespace AtCoder
{
    public class Program
    {
        public static void Main(string[] args)
        {
            new Program().Solve(new ConsoleInput(Console.In, ' '));
        }

        public void Solve(ConsoleInput cin)
        {
            // 解答はココに書く
            var l = 0;
            var list = new List<int>();

            var a = cin.ReadInt;
            if (a%10 != 0 && 10-(a%10) > l) {
                list.Add(a);
                l = 10-(a%10);
            } else {
                list.Insert(0,a);
            }
            var b = cin.ReadInt;
            if (b%10 != 0 && 10-(b%10) > l) {
                list.Add(b);
                l = 10-(b%10);
            } else {
                list.Insert(0,b);
            }
            var c = cin.ReadInt;
            if (c%10 != 0 && 10-(c%10) > l) {
                list.Add(c);
                l = 10-(c%10);
            } else {
                list.Insert(0,c);
            }
            var d = cin.ReadInt;
            if (d%10 != 0 && 10-(d%10) > l) {
                list.Add(d);
                l = 10-(d%10);
            } else {
                list.Insert(0,d);
            }
            var e = cin.ReadInt;
            if (e%10 != 0 && 10-(e%10) > l) {
                list.Add(e);
                l = 10-(e%10);
            } else {
                list.Insert(0,e);
            }
            
            var sum = 0;
            for (var i = 0; i < list.Count; i++) {
                if (i == list.Count-1) {
                    sum += list[i];
                    break;
                }
                sum += (int)MultipleCeil(list[i], 10);
            }
            WriteLine(sum);
        }
        private double MultipleCeil(double value, double multiple) {return Math.Ceiling(value / multiple) * multiple;}

    }

    public class ConsoleInput
    {
        private readonly System.IO.TextReader _stream;
        private char _separator = ' ';
        private Queue<string> inputStream;
        public ConsoleInput(System.IO.TextReader stream, char separator = ' ')
        {
            this._separator = separator;
            this._stream = stream;
            inputStream = new Queue<string>();
        }
        public string Read
        {
            get
            {
                if (inputStream.Count != 0) return inputStream.Dequeue();
                string[] tmp = _stream.ReadLine().Split(_separator);
                for (int i = 0; i < tmp.Length; ++i)
                    inputStream.Enqueue(tmp[i]);
                return inputStream.Dequeue();
            }
        }
        public string ReadLine { get { return _stream.ReadLine(); }}
        public int ReadInt { get { return int.Parse(Read); }}
        public long ReadLong { get { return long.Parse(Read); }}
        public double ReadDouble { get { return double.Parse(Read); }}
        public string[] ReadStrArray(long N) { var ret = new string[N]; for (long i = 0; i < N; ++i) ret[i] = Read; return ret;}
        public int[] ReadIntArray(long N) { var ret = new int[N]; for (long i = 0; i < N; ++i) ret[i] = ReadInt; return ret;}
        public long[] ReadLongArray(long N) { var ret = new long[N]; for (long i = 0; i < N; ++i) ret[i] = ReadLong; return ret;}
    }
}

Measured memory_bytes: 11348