import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); PriorityQueue blocks = new PriorityQueue<>(); for (int i = 0; i < n; i++) { blocks.add(new Block(sc.nextInt(), sc.nextInt())); } long weight = 0; while (blocks.size() > 0) { Block b = blocks.poll(); if (weight > b.limit) { System.out.println("No"); return; } weight += b.weight; } System.out.println("Yes"); } static class Block implements Comparable { int weight; int limit; public Block(int weight, int limit) { this.weight = weight; this.limit = limit; } public int compareTo(Block b) { return (weight + limit) - (b.limit + b.weight); } } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public String next() throws Exception { if (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }