import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        TreeMap<Integer, Integer> imos = new TreeMap<>();
        while (n-- > 0) {
            int x = sc.nextInt();
            imos.put(x, imos.getOrDefault(x, 0) + 1);
            int y = sc.nextInt();
            imos.put(y, imos.getOrDefault(y, 0) - 1);
        }
        int current = 0;
        int ans = 0;
        for (int x : imos.keySet()) {
            current += imos.get(x);
            ans = Math.max(ans, current);
        }
        System.out.println(ans - 1);
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}