using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCoder
{
    class Work
    {
        public int time;
        public int limit;
    }
    public class Prog
    {
        const int MOD = 1000000007;
        public static void Main(string[] args)
        {
            var sw = new System.IO.StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
            Console.SetOut(sw);
            new Prog().Solve(new ConsoleInput(Console.In, ' '));
            Console.Out.Flush();
        }

        public void Solve(ConsoleInput cin)
        {
            var n = cin.ReadLong;

            var works = new List<Work>();
            for (int i = 0; i < n; i++)
            {
                var a = cin.ReadInt;
                var b = cin.ReadInt;
                works.Add(new Work { time = a, limit = b });
            }

            var sortedWorks = works.OrderBy(x => x.limit);

            var time = 0L;
            foreach (var work in sortedWorks)
            {
                time += work.time;
                if (time > work.limit)
                {
                    Console.WriteLine("No");
                    return;
                }
            }

            Console.WriteLine("Yes");

        }

        /// <summary>
        /// 最大公約数
        /// </summary>
        static long Gcd(long a, long b)
        {
            return (a < b) ? Gcd(b, a)
                 : (b > 0) ? Gcd(b, a % b)
                           : a;
        }

        /// <summary>
        /// 最小公倍数
        /// </summary>
        static long Lcm(long a, long b)
        {
            return a / Gcd(a, b) * b;
        }
    }
    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; }
        public void ReadIntArrays(long N, out int[] A, out int[] B) { A = new int[N]; B = new int[N]; for (long i = 0; i < N; ++i) { A[i] = ReadInt; B[i] = ReadInt; } }
    }
}


Measured memory_bytes: 31012