//  [java]
import java.util.*;
import java.io.*;

public class Main {
    public static void main(String[] args) {
        FastScanner sc = new FastScanner();
        int n = sc.nextInt();
        long max = 0;
        List<Pair> p = new ArrayList<Pair>();
        for (int i = 0; i < n; i++) {
            long a = sc.nextLong();
            long b = sc.nextLong();
            max = Math.max(max, b);
            p.add(new Pair(a, b));
        }
        Collections.sort(p, new PairComparator());
        if (solve(max, p)) {
            System.out.println("Yes");
            return;
        }
        System.out.println("No");
    }

    public static boolean solve(long x, List<Pair> p) {
        long res = 0;
        for (int i = 0; i < p.size(); i++) {
            res += p.get(i).a;
            if (res > p.get(i).b) {
                return false;
            }
        }
        return true;
    }
}

class Pair {
    long a;
    long b;

    public Pair(long a, long b) {
        this.a = a;
        this.b = b;
    }

    public long compareTo(Pair p) {
        return this.b - p.b;
    }

    public String toString() {
        return String.format("a: %d b: %d %n", this.a, this.b);
    }
}

class PairComparator implements Comparator<Pair> {
    public int compare(Pair p1, Pair p2) {
        return (int) p1.b - (int) p2.b;
    }
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;

    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        } else {
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }

    private int readByte() {
        if (hasNextByte())
            return buffer[ptr++];
        else
            return -1;
    }

    private static boolean isPrintableChar(int c) {
        return 33 <= c && c <= 126;
    }

    public boolean hasNext() {
        while (hasNextByte() && !isPrintableChar(buffer[ptr]))
            ptr++;
        return hasNextByte();
    }

    public String next() {
        if (!hasNext())
            throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while (isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    public long nextLong() {
        if (!hasNext())
            throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while (true) {
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            } else if (b == -1 || !isPrintableChar(b)) {
                return minus ? -n : n;
            } else {
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }

    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)
            throw new NumberFormatException();
        return (int) nl;
    }

    public double nextDouble() {
        return Double.parseDouble(next());
    }
}